diff --git a/.playground/pages/composant/radioButton.vue b/.playground/pages/composant/radioButton.vue
new file mode 100644
index 0000000..7e32afe
--- /dev/null
+++ b/.playground/pages/composant/radioButton.vue
@@ -0,0 +1,111 @@
+<template>
+  <div class="grid grid-cols-2 gap-6 md:grid-cols-3">
+    <div class="rounded-lg border p-4">
+      <h2 class="mb-4 text-xl font-bold">Simple</h2>
+      <div class="space-y-1">
+        <MalioRadioButton
+          v-for="option in options"
+          :key="`simple-${option.value}`"
+          v-model="primaryChoice"
+          :label="option.label"
+          :value="option.value"
+          name="primary-choice"
+        />
+      </div>
+    </div>
+
+    <div class="rounded-lg border p-4">
+      <h2 class="mb-4 text-xl font-bold">Preselected</h2>
+      <div class="space-y-1">
+        <MalioRadioButton
+          v-for="option in options"
+          :key="`preselected-${option.value}`"
+          v-model="preselectedChoice"
+          :label="option.label"
+          :value="option.value"
+          name="preselected-choice"
+        />
+      </div>
+    </div>
+
+    <div class="rounded-lg border p-4">
+      <h2 class="mb-4 text-xl font-bold">Error</h2>
+      <div class="space-y-1">
+        <MalioRadioButton
+          v-for="option in options"
+          :key="`error-${option.value}`"
+          v-model="errorChoice"
+          :label="option.label"
+          :value="option.value"
+          name="error-choice"
+          error="Selection required"
+        />
+      </div>
+    </div>
+
+    <div class="rounded-lg border p-4">
+      <h2 class="mb-4 text-xl font-bold">Success</h2>
+      <div class="space-y-1">
+        <MalioRadioButton
+          v-for="option in options"
+          :key="`success-${option.value}`"
+          v-model="successChoice"
+          :label="option.label"
+          :value="option.value"
+          name="success-choice"
+          success="Selection saved"
+        />
+      </div>
+    </div>
+
+    <div class="rounded-lg border p-4">
+      <h2 class="mb-4 text-xl font-bold">Disabled</h2>
+      <div class="space-y-1">
+        <MalioRadioButton
+          v-for="option in options"
+          :key="`disabled-${option.value}`"
+          v-model="disabledChoice"
+          :label="option.label"
+          :value="option.value"
+          name="disabled-choice"
+          disabled
+        />
+      </div>
+    </div>
+
+    <div class="rounded-lg border p-4">
+      <h2 class="mb-4 text-xl font-bold">Readonly</h2>
+      <div class="space-y-1">
+        <MalioRadioButton
+          v-for="option in options"
+          :key="`readonly-${option.value}`"
+          v-model="readonlyChoice"
+          :label="option.label"
+          :value="option.value"
+          name="readonly-choice"
+          readonly
+          hint="Readonly group"
+        />
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import {ref} from 'vue'
+import MalioRadioButton from '../../../app/components/malio/RadioButton.vue'
+
+const options = [
+  {label: 'Option 1', value: 'option1'},
+  {label: 'Option 2', value: 'option2'},
+  {label: 'Option 3', value: 'option3'},
+  {label: 'Option 4', value: 'option4'},
+]
+
+const primaryChoice = ref<string | null>(null)
+const preselectedChoice = ref<string | null>('option2')
+const errorChoice = ref<string | null>(null)
+const successChoice = ref<string | null>('option3')
+const disabledChoice = ref<string | null>('option2')
+const readonlyChoice = ref<string | null>('option4')
+</script>
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4b688f4..28cba51 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@ Liste des évolutions de la librairie Malio layer UI
 
 ### Added
 * [#333] Création d'un composant text
+* [#364] Création d'un composant button radio
 
 ### Changed
 
diff --git a/app/components/malio/RadioButton.test.ts b/app/components/malio/RadioButton.test.ts
new file mode 100644
index 0000000..5a10947
--- /dev/null
+++ b/app/components/malio/RadioButton.test.ts
@@ -0,0 +1,156 @@
+import {describe, expect, it} from 'vitest'
+import {mount} from '@vue/test-utils'
+import type {DefineComponent} from 'vue'
+import RadioButton from './RadioButton.vue'
+
+type RadioButtonProps = {
+  id?: string
+  label?: string
+  name?: string
+  modelValue?: string | number | boolean | null | undefined
+  value?: string | number | boolean | null | undefined
+  inputClass?: string
+  labelClass?: string
+  groupClass?: string
+  required?: boolean
+  disabled?: boolean
+  readonly?: boolean
+  hint?: string
+  error?: string
+  success?: string
+}
+
+const RadioButtonForTest = RadioButton as DefineComponent<RadioButtonProps>
+
+const mountRadioButton = (props: RadioButtonProps = {}) =>
+  mount(RadioButtonForTest, {
+    props,
+  })
+
+describe('MalioRadioButton', () => {
+  it('renders the label text', () => {
+    const wrapper = mountRadioButton({label: 'Option 1'})
+
+    expect(wrapper.get('.radio-text').text()).toBe('Option 1')
+  })
+
+  it('applies provided id to input and label', () => {
+    const wrapper = mountRadioButton({id: 'radio-id', label: 'Option 1'})
+
+    expect(wrapper.get('input').attributes('id')).toBe('radio-id')
+    expect(wrapper.get('.radio-text').attributes('for')).toBe('radio-id')
+  })
+
+  it('generates an id when missing and reuses it on label', () => {
+    const wrapper = mountRadioButton({label: 'Option 1'})
+
+    const inputId = wrapper.get('input').attributes('id')
+
+    expect(inputId?.startsWith('malio-radio-')).toBe(true)
+    expect(wrapper.get('.radio-text').attributes('for')).toBe(inputId)
+  })
+
+  it('applies the name attribute', () => {
+    const wrapper = mountRadioButton({name: 'choice-group'})
+
+    expect(wrapper.get('input').attributes('name')).toBe('choice-group')
+  })
+
+  it('sets required when true', () => {
+    const wrapper = mountRadioButton({required: true})
+
+    expect(wrapper.get('input').attributes('required')).toBeDefined()
+  })
+
+  it('sets disabled styles when true', () => {
+    const wrapper = mountRadioButton({disabled: true, label: 'Option 1'})
+
+    expect(wrapper.get('input').attributes('disabled')).toBeDefined()
+    expect(wrapper.get('.radio-control').classes()).toContain('is-disabled')
+    expect(wrapper.get('.radio-text').classes()).toContain('cursor-not-allowed')
+  })
+
+  it('checks the input when modelValue matches value', () => {
+    const wrapper = mountRadioButton({modelValue: 'a', value: 'a'})
+
+    expect((wrapper.get('input').element as HTMLInputElement).checked).toBe(true)
+  })
+
+  it('emits update:modelValue on change', async () => {
+    const wrapper = mountRadioButton({modelValue: 'a', value: 'b'})
+
+    await wrapper.get('input').trigger('change')
+
+    expect(wrapper.emitted('update:modelValue')?.[0]).toEqual(['b'])
+  })
+
+  it('prevents updates when readonly', async () => {
+    const wrapper = mountRadioButton({modelValue: 'a', value: 'b', readonly: true})
+    const input = wrapper.get('input')
+
+    ;(input.element as HTMLInputElement).checked = true
+    await input.trigger('change')
+
+    expect(wrapper.emitted('update:modelValue')).toBeUndefined()
+    expect((input.element as HTMLInputElement).checked).toBe(false)
+  })
+
+  it('shows hint message and wires aria-describedby', () => {
+    const wrapper = mountRadioButton({hint: 'Helpful hint'})
+    const input = wrapper.get('input')
+    const message = wrapper.get('.radio-message')
+
+    expect(message.text()).toBe('Helpful hint')
+    expect(input.attributes('aria-describedby')).toBe(message.attributes('id'))
+    expect(input.attributes('aria-invalid')).toBe('false')
+  })
+
+  it('shows error state on control, label and helper text', () => {
+    const wrapper = mountRadioButton({
+      label: 'Option 1',
+      error: 'Selection required',
+    })
+
+    expect(wrapper.get('.radio-control').classes()).toContain('is-error')
+    expect(wrapper.get('.radio-text').classes()).toContain('text-m-error')
+    expect(wrapper.get('.radio-message').classes()).toContain('text-m-error')
+    expect(wrapper.get('input').attributes('aria-invalid')).toBe('true')
+  })
+
+  it('shows success state when no error is present', () => {
+    const wrapper = mountRadioButton({
+      label: 'Option 1',
+      success: 'Selection saved',
+    })
+
+    expect(wrapper.get('.radio-control').classes()).toContain('is-success')
+    expect(wrapper.get('.radio-text').classes()).toContain('text-m-success')
+    expect(wrapper.get('.radio-message').classes()).toContain('text-m-success')
+  })
+
+  it('prioritizes error over success', () => {
+    const wrapper = mountRadioButton({
+      error: 'Selection required',
+      success: 'Selection saved',
+    })
+
+    expect(wrapper.get('.radio-control').classes()).toContain('is-error')
+    expect(wrapper.get('.radio-control').classes()).not.toContain('is-success')
+    expect(wrapper.get('.radio-message').text()).toBe('Selection required')
+    expect(wrapper.get('.radio-message').classes()).toContain('text-m-error')
+  })
+
+  it('merges custom classes on group, input and label', () => {
+    const wrapper = mountRadioButton({
+      label: 'Option 1',
+      groupClass: 'mt-0 custom-group',
+      inputClass: 'border-red-500',
+      labelClass: 'font-bold',
+    })
+
+    expect(wrapper.get('.radio-item').classes()).toContain('custom-group')
+    expect(wrapper.get('.radio-item').classes()).toContain('mt-0')
+    expect(wrapper.get('input').classes()).toContain('border-red-500')
+    expect(wrapper.get('.radio-text').classes()).toContain('font-bold')
+  })
+})
diff --git a/app/components/malio/RadioButton.vue b/app/components/malio/RadioButton.vue
new file mode 100644
index 0000000..06fac78
--- /dev/null
+++ b/app/components/malio/RadioButton.vue
@@ -0,0 +1,197 @@
+<template>
+  <div :class="mergedGroupClass">
+    <div :class="mergedControlClass">
+      <label :for="inputId" class="radio-indicator relative flex cursor-pointer items-center p-3">
+        <input
+          :id="inputId"
+          :name="name"
+          :value="value"
+          :checked="isChecked"
+          :required="required"
+          :disabled="disabled"
+          :aria-invalid="!!error"
+          :aria-describedby="describedBy"
+          :class="mergedInputClass"
+          v-bind="attrs"
+          type="radio"
+          @click="onClick"
+          @change="onChange"
+        >
+        <span class="radio-dot pointer-events-none absolute top-1/2 left-1/2 -translate-x-1/2 -translate-y-1/2 text-black opacity-0">
+          <svg viewBox="0 0 16 16" fill="currentColor" class="h-[10px]">
+            <circle cx="8" cy="8" r="8" />
+          </svg>
+        </span>
+      </label>
+
+      <label
+        v-if="label"
+        :for="inputId"
+        :class="mergedLabelClass"
+      >
+        {{ label }}
+      </label>
+    </div>
+
+    <p
+      v-if="shouldShowMessage"
+      :id="`${inputId}-describedby`"
+      :class="mergedMessageClass"
+    >
+      {{ error || success || hint }}
+    </p>
+  </div>
+</template>
+
+<script setup lang="ts">
+import {computed, useAttrs, useId} from 'vue'
+import {twMerge} from 'tailwind-merge'
+
+defineOptions({name: 'MalioRadioButton', inheritAttrs: false})
+
+const props = withDefaults(
+  defineProps<{
+    id?: string
+    label?: string
+    name?: string
+    modelValue?: string | number | boolean | null | undefined
+    value?: string | number | boolean | null | undefined
+    inputClass?: string
+    labelClass?: string
+    groupClass?: string
+    required?: boolean
+    disabled?: boolean
+    readonly?: boolean
+    hint?: string
+    error?: string
+    success?: string
+  }>(),
+  {
+    id: '',
+    label: '',
+    name: '',
+    modelValue: undefined,
+    value: undefined,
+    inputClass: '',
+    labelClass: '',
+    groupClass: '',
+    required: false,
+    disabled: false,
+    readonly: false,
+    hint: '',
+    error: '',
+    success: '',
+  },
+)
+
+const attrs = useAttrs()
+const generatedId = useId()
+
+const inputId = computed(() => props.id?.toString() || `malio-radio-${generatedId}`)
+const isChecked = computed(() => props.modelValue === props.value)
+const hasError = computed(() => !!props.error)
+const hasSuccess = computed(() => !!props.success && !hasError.value)
+const disabled = computed(() => props.disabled)
+const shouldShowMessage = computed(() => !!(props.hint || hasError.value || hasSuccess.value))
+
+const describedBy = computed(() => {
+  if (!shouldShowMessage.value) return undefined
+  return `${inputId.value}-describedby`
+})
+
+const mergedGroupClass = computed(() =>
+  twMerge(
+    'radio-item mt-4 w-full',
+    props.groupClass,
+  ),
+)
+
+const mergedControlClass = computed(() =>
+  twMerge(
+    'radio-control flex items-center',
+    hasError.value ? 'is-error' : '',
+    hasSuccess.value ? 'is-success' : '',
+    disabled.value ? 'is-disabled' : '',
+  ),
+)
+
+const mergedInputClass = computed(() =>
+  twMerge(
+    'h-5 w-5 cursor-pointer appearance-none rounded-full border-2 border-black',
+    props.inputClass,
+  ),
+)
+
+const mergedLabelClass = computed(() =>
+  twMerge(
+    'radio-text mt-px cursor-pointer text-black',
+    hasError.value ? 'text-m-error' : '',
+    hasSuccess.value ? 'text-m-success' : '',
+    disabled.value ? 'cursor-not-allowed text-black/60' : '',
+    props.labelClass,
+  ),
+)
+
+const mergedMessageClass = computed(() =>
+  twMerge(
+    'radio-message ml-3 -mt-1 text-xs',
+    hasError.value
+      ? 'text-m-error'
+      : hasSuccess.value
+        ? 'text-m-success'
+        : 'text-m-muted',
+  ),
+)
+
+const emit = defineEmits<{
+  (event: 'update:modelValue', value: string | number | boolean | null | undefined): void
+}>()
+
+const onClick = (event: MouseEvent) => {
+  if (!props.readonly) return
+
+  event.preventDefault()
+}
+
+const onChange = (event: Event) => {
+  if (props.readonly) {
+    const target = event.target as HTMLInputElement
+    target.checked = isChecked.value
+    return
+  }
+
+  emit('update:modelValue', props.value)
+}
+</script>
+
+<style scoped>
+.radio-control input[type='radio']:checked + .radio-dot {
+  opacity: 1;
+}
+
+.radio-control.is-error input[type='radio'] {
+  border-color: rgb(var(--m-error) / 1);
+}
+
+.radio-control.is-error .radio-dot {
+  color: rgb(var(--m-error) / 1);
+}
+
+.radio-control.is-success input[type='radio'] {
+  border-color: rgb(var(--m-success) / 1);
+}
+
+.radio-control.is-success .radio-dot {
+  color: rgb(var(--m-success) / 1);
+}
+
+.radio-control.is-disabled .radio-indicator,
+.radio-control.is-disabled .radio-text {
+  cursor: not-allowed;
+  opacity: 0.6;
+}
+
+.radio-item:has(+ .radio-item) .radio-message {
+  display: none;
+}
+</style>
diff --git a/app/story/RadioButton.story.vue b/app/story/RadioButton.story.vue
new file mode 100644
index 0000000..a577296
--- /dev/null
+++ b/app/story/RadioButton.story.vue
@@ -0,0 +1,187 @@
+<template>
+  <Story title="Input/Radio">
+    <div class="grid grid-cols-1 gap-6 md:grid-cols-2">
+      <div class="rounded-lg border p-4">
+        <h2 class="mb-4 text-xl font-bold">Simple</h2>
+        <div class="space-y-1">
+          <MalioRadioButton
+            v-for="option in options"
+            :key="`simple-${option.value}`"
+            v-model="primaryChoice"
+            :label="option.label"
+            :value="option.value"
+            name="primary-choice"
+          />
+        </div>
+      </div>
+
+      <div class="rounded-lg border p-4">
+        <h2 class="mb-4 text-xl font-bold">Preselected</h2>
+        <div class="space-y-1">
+          <MalioRadioButton
+            v-for="option in options"
+            :key="`preselected-${option.value}`"
+            v-model="preselectedChoice"
+            :label="option.label"
+            :value="option.value"
+            name="preselected-choice"
+          />
+        </div>
+      </div>
+
+      <div class="rounded-lg border p-4">
+        <h2 class="mb-4 text-xl font-bold">Error</h2>
+        <div class="space-y-1">
+          <MalioRadioButton
+            v-for="option in options"
+            :key="`error-${option.value}`"
+            v-model="errorChoice"
+            :label="option.label"
+            :value="option.value"
+            name="error-choice"
+            error="Selection required"
+          />
+        </div>
+      </div>
+
+      <div class="rounded-lg border p-4">
+        <h2 class="mb-4 text-xl font-bold">Success</h2>
+        <div class="space-y-1">
+          <MalioRadioButton
+            v-for="option in options"
+            :key="`success-${option.value}`"
+            v-model="successChoice"
+            :label="option.label"
+            :value="option.value"
+            name="success-choice"
+            success="Selection saved"
+          />
+        </div>
+      </div>
+
+      <div class="rounded-lg border p-4">
+        <h2 class="mb-4 text-xl font-bold">Disabled</h2>
+        <div class="space-y-1">
+          <MalioRadioButton
+            v-for="option in options"
+            :key="`disabled-${option.value}`"
+            v-model="disabledChoice"
+            :label="option.label"
+            :value="option.value"
+            name="disabled-choice"
+            disabled
+          />
+        </div>
+      </div>
+
+      <div class="rounded-lg border p-4">
+        <h2 class="mb-4 text-xl font-bold">Readonly</h2>
+        <div class="space-y-1">
+          <MalioRadioButton
+            v-for="option in options"
+            :key="`readonly-${option.value}`"
+            v-model="readonlyChoice"
+            :label="option.label"
+            :value="option.value"
+            name="readonly-choice"
+            readonly
+            hint="Readonly group"
+          />
+        </div>
+      </div>
+    </div>
+  </Story>
+</template>
+
+<docs lang="md">
+# MalioRadioButton
+
+Composant radio personnalisé compatible avec `v-model`, les groupes via `name`,
+et les états visuels de validation.
+
+------------------------------------------------------------------------
+
+## Props détaillées
+
+### modelValue
+
+-   Type: `string | number | boolean | null | undefined`
+-   Description: Valeur actuellement sélectionnée dans le groupe.
+-   Comportement:
+-   Compatible avec `v-model`.
+-   Le radio est coché quand `modelValue === value`.
+
+### value
+
+-   Type: `string | number | boolean | null | undefined`
+-   Description: Valeur portée par le radio courant.
+
+### label
+
+-   Type: `string`
+-   Description: Texte affiché à droite du radio.
+
+### name
+
+-   Type: `string`
+-   Description: Nom HTML partagé par les radios d’un même groupe.
+
+------------------------------------------------------------------------
+
+## États
+
+### error
+
+-   Type: `string`
+-   Description: Message et style d’erreur.
+
+### success
+
+-   Type: `string`
+-   Description: Message et style de succès.
+-   Comportement: ignoré si `error` est présent.
+
+### disabled
+
+-   Type: `boolean`
+-   Description: Désactive le radio.
+
+### readonly
+
+-   Type: `boolean`
+-   Description: Empêche le changement de valeur tout en gardant le rendu affiché.
+
+### hint
+
+-   Type: `string`
+-   Description: Message d’aide sous le groupe.
+
+------------------------------------------------------------------------
+
+## Events
+
+### update:modelValue
+
+-   Émis à la sélection d’un radio.
+-   Retourne la `value` du radio sélectionné.
+
+</docs>
+
+<script setup lang="ts">
+import {ref} from 'vue'
+import MalioRadioButton from '../components/malio/RadioButton.vue'
+
+const options = [
+  {label: 'Option 1', value: 'option1'},
+  {label: 'Option 2', value: 'option2'},
+  {label: 'Option 3', value: 'option3'},
+  {label: 'Option 4', value: 'option4'},
+]
+
+const primaryChoice = ref<string | null>(null)
+const preselectedChoice = ref<string | null>('option2')
+const errorChoice = ref<string | null>(null)
+const successChoice = ref<string | null>('option3')
+const disabledChoice = ref<string | null>('option2')
+const readonlyChoice = ref<string | null>('option4')
+</script>