diff --git a/src/Entity/Workflow.php b/src/Entity/Workflow.php
new file mode 100644
index 0000000..80db9b3
--- /dev/null
+++ b/src/Entity/Workflow.php
@@ -0,0 +1,131 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Entity;
+
+use ApiPlatform\Metadata\ApiResource;
+use ApiPlatform\Metadata\Delete;
+use ApiPlatform\Metadata\Get;
+use ApiPlatform\Metadata\GetCollection;
+use ApiPlatform\Metadata\Patch;
+use ApiPlatform\Metadata\Post;
+use App\Repository\WorkflowRepository;
+use App\State\WorkflowDeleteProcessor;
+use Doctrine\Common\Collections\ArrayCollection;
+use Doctrine\Common\Collections\Collection;
+use Doctrine\ORM\Mapping as ORM;
+use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;
+use Symfony\Component\Serializer\Attribute\Groups;
+use Symfony\Component\Validator\Constraints as Assert;
+
+#[ApiResource(
+    operations: [
+        new GetCollection(security: "is_granted('ROLE_USER')"),
+        new Get(security: "is_granted('ROLE_USER')"),
+        new Post(security: "is_granted('ROLE_ADMIN')"),
+        new Patch(security: "is_granted('ROLE_ADMIN')"),
+        new Delete(security: "is_granted('ROLE_ADMIN')", processor: WorkflowDeleteProcessor::class),
+    ],
+    normalizationContext: ['groups' => ['workflow:read']],
+    denormalizationContext: ['groups' => ['workflow:write']],
+    order: ['position' => 'ASC'],
+)]
+#[ORM\Entity(repositoryClass: WorkflowRepository::class)]
+#[UniqueEntity(fields: ['name'], message: 'Ce nom de workflow est déjà utilisé.')]
+class Workflow
+{
+    #[ORM\Id]
+    #[ORM\GeneratedValue]
+    #[ORM\Column]
+    #[Groups(['workflow:read', 'project:read', 'task_status:read'])]
+    private ?int $id = null;
+
+    #[ORM\Column(length: 255, unique: true)]
+    #[Groups(['workflow:read', 'workflow:write', 'project:read'])]
+    #[Assert\NotBlank]
+    private ?string $name = null;
+
+    #[ORM\Column(type: 'boolean', options: ['default' => false])]
+    #[Groups(['workflow:read', 'workflow:write'])]
+    private bool $isDefault = false;
+
+    #[ORM\Column(type: 'integer', options: ['default' => 0])]
+    #[Groups(['workflow:read', 'workflow:write'])]
+    private int $position = 0;
+
+    /** @var Collection<int, TaskStatus> */
+    #[ORM\OneToMany(targetEntity: TaskStatus::class, mappedBy: 'workflow', cascade: ['persist', 'remove'], orphanRemoval: true)]
+    #[ORM\OrderBy(['position' => 'ASC'])]
+    #[Groups(['workflow:read', 'project:read'])]
+    private Collection $statuses;
+
+    public function __construct()
+    {
+        $this->statuses = new ArrayCollection();
+    }
+
+    public function getId(): ?int
+    {
+        return $this->id;
+    }
+
+    public function getName(): ?string
+    {
+        return $this->name;
+    }
+
+    public function setName(string $name): static
+    {
+        $this->name = $name;
+
+        return $this;
+    }
+
+    public function isDefault(): bool
+    {
+        return $this->isDefault;
+    }
+
+    public function setIsDefault(bool $isDefault): static
+    {
+        $this->isDefault = $isDefault;
+
+        return $this;
+    }
+
+    public function getPosition(): int
+    {
+        return $this->position;
+    }
+
+    public function setPosition(int $position): static
+    {
+        $this->position = $position;
+
+        return $this;
+    }
+
+    /** @return Collection<int, TaskStatus> */
+    public function getStatuses(): Collection
+    {
+        return $this->statuses;
+    }
+
+    public function addStatus(TaskStatus $status): static
+    {
+        if (!$this->statuses->contains($status)) {
+            $this->statuses->add($status);
+            $status->setWorkflow($this);
+        }
+
+        return $this;
+    }
+
+    public function removeStatus(TaskStatus $status): static
+    {
+        $this->statuses->removeElement($status);
+
+        return $this;
+    }
+}
diff --git a/src/Repository/WorkflowRepository.php b/src/Repository/WorkflowRepository.php
new file mode 100644
index 0000000..fafd288
--- /dev/null
+++ b/src/Repository/WorkflowRepository.php
@@ -0,0 +1,25 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Repository;
+
+use App\Entity\Workflow;
+use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;
+use Doctrine\Persistence\ManagerRegistry;
+
+/**
+ * @extends ServiceEntityRepository<Workflow>
+ */
+class WorkflowRepository extends ServiceEntityRepository
+{
+    public function __construct(ManagerRegistry $registry)
+    {
+        parent::__construct($registry, Workflow::class);
+    }
+
+    public function findDefault(): ?Workflow
+    {
+        return $this->findOneBy(['isDefault' => true]);
+    }
+}