diff --git a/frontend/src/pages/admin/AdminMemberEditPage.vue b/frontend/src/pages/admin/AdminMemberEditPage.vue
new file mode 100644
index 0000000..05a12e2
--- /dev/null
+++ b/frontend/src/pages/admin/AdminMemberEditPage.vue
@@ -0,0 +1,299 @@
+<script setup lang="ts">
+import { ref, computed, onMounted } from 'vue'
+import { RouterLink, useRouter } from 'vue-router'
+import { api, ApiError } from '@/api/client'
+import { useAuth } from '@/composables/useAuth'
+import type { Member } from '@/types/api'
+import AdminSubNav from '@/components/AdminSubNav.vue'
+import Avatar from '@/components/Avatar.vue'
+import LoadingState from '@/components/LoadingState.vue'
+import ErrorState from '@/components/ErrorState.vue'
+
+const props = defineProps<{ slug: string }>()
+const router = useRouter()
+const { isAuthenticated } = useAuth()
+
+const member = ref<Member | null>(null)
+const loading = ref(true)
+const loadError = ref<string | null>(null)
+
+const form = ref({
+  display_name: '',
+  slug: '',
+  initials: '',
+  kind: 'person' as Member['kind'],
+  bio: '',
+  avatar_url: '',
+  website_url: '',
+  contact_email: '',
+})
+const submitting = ref(false)
+const fieldErrors = ref<Record<string, string>>({})
+const generalError = ref<string | null>(null)
+const justSaved = ref(false)
+
+async function load() {
+  loading.value = true
+  loadError.value = null
+  try {
+    const m = await api.get<Member>(`/api/members/${encodeURIComponent(props.slug)}`)
+    member.value = m
+    form.value = {
+      display_name:  m.display_name,
+      slug:          m.slug,
+      initials:      m.initials ?? '',
+      kind:          m.kind,
+      bio:           m.bio ?? '',
+      avatar_url:    m.avatar_url ?? '',
+      website_url:   m.website_url ?? '',
+      contact_email: m.contact_email ?? '',
+    }
+  } catch (e) {
+    loadError.value = e instanceof ApiError ? (e.payload.message ?? e.code) : 'Erreur réseau'
+  } finally {
+    loading.value = false
+  }
+}
+onMounted(load)
+
+const slugChanged = computed(() => member.value !== null && form.value.slug !== member.value.slug)
+
+// Liste de projets sur lesquels ce membre est attaché — affichage informatif
+// pour rappeler à l'admin l'impact d'une suppression ou d'un changement de slug.
+const memberProjects = computed(() => member.value?.projects ?? [])
+
+async function submit() {
+  fieldErrors.value = {}
+  generalError.value = null
+  justSaved.value = false
+  if (!isAuthenticated.value) {
+    generalError.value = "Tu dois être connecté en admin."
+    return
+  }
+  if (!member.value) return
+
+  submitting.value = true
+  try {
+    // Construit le diff : on n'envoie que ce qui a changé.
+    const diff: Record<string, unknown> = {}
+    const m = member.value
+    if (form.value.display_name.trim() !== m.display_name) diff.display_name = form.value.display_name.trim()
+    if (slugChanged.value)                                  diff.slug = form.value.slug.trim()
+    if (form.value.initials !== (m.initials ?? ''))         diff.initials = form.value.initials.trim() || null
+    if (form.value.kind !== m.kind)                         diff.kind = form.value.kind
+    if (form.value.bio !== (m.bio ?? ''))                   diff.bio = form.value.bio || null
+    if (form.value.avatar_url !== (m.avatar_url ?? ''))     diff.avatar_url = form.value.avatar_url || null
+    if (form.value.website_url !== (m.website_url ?? ''))   diff.website_url = form.value.website_url || null
+    if (form.value.contact_email !== (m.contact_email ?? '')) diff.contact_email = form.value.contact_email || null
+
+    if (Object.keys(diff).length === 0) {
+      generalError.value = 'Aucune modification à enregistrer.'
+      submitting.value = false
+      return
+    }
+
+    const updated = await api.patch<Member>(`/api/members/${encodeURIComponent(m.slug)}`, diff)
+    member.value = updated
+    // Si le slug a changé, l'URL courante devient invalide. On reroute discrètement.
+    if (updated.slug !== props.slug) {
+      router.replace({ name: 'admin-member-edit', params: { slug: updated.slug } })
+    }
+    justSaved.value = true
+  } catch (e) {
+    if (e instanceof ApiError) {
+      if (e.status === 422)         fieldErrors.value = e.fields
+      else if (e.status === 401)    generalError.value = 'Session admin expirée. Reconnecte-toi.'
+      else if (e.status === 409)    generalError.value = e.payload.message ?? 'Conflit (slug déjà pris ?)'
+      else                          generalError.value = e.payload.message ?? e.code
+    } else {
+      generalError.value = 'Erreur réseau'
+    }
+  } finally {
+    submitting.value = false
+  }
+}
+
+async function destroy() {
+  if (!member.value) return
+  const projectCount = memberProjects.value.length
+  const warning = projectCount > 0
+    ? `\n${projectCount} projet${projectCount > 1 ? 's' : ''} en cours seront affectés (le membre sera retiré).`
+    : ''
+  if (!confirm(`Supprimer définitivement « ${member.value.display_name} » ?${warning}`)) return
+  try {
+    await api.delete(`/api/members/${encodeURIComponent(member.value.slug)}`)
+    router.push({ name: 'admin-members' })
+  } catch (e) {
+    if (e instanceof ApiError) generalError.value = e.payload.message ?? e.code
+    else generalError.value = 'Erreur réseau'
+  }
+}
+</script>
+
+<template>
+  <section class="px-10 py-8 max-w-4xl">
+    <header class="mb-6">
+      <h1 class="text-3xl font-semibold text-donut-text">Administration</h1>
+      <p class="text-donut-muted mt-1">Édition d'un membre de l'annuaire.</p>
+    </header>
+    <AdminSubNav />
+
+    <LoadingState v-if="loading" class="mt-8" />
+    <ErrorState v-else-if="loadError" :message="loadError" :retry="load" class="mt-8" />
+
+    <div v-else-if="member" class="mt-6 space-y-4">
+      <RouterLink :to="{ name: 'admin-members' }" class="inline-flex items-center gap-1.5 text-sm text-donut-muted hover:text-donut-text">
+        <svg viewBox="0 0 24 24" class="w-4 h-4" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+          <path d="m12 19-7-7 7-7M5 12h14"/>
+        </svg>
+        Retour à l'annuaire
+      </RouterLink>
+
+      <form @submit.prevent="submit" class="rounded-xl border border-donut-border bg-donut-surface p-6 space-y-5">
+        <header class="flex items-center justify-between gap-4 pb-4 border-b border-donut-border">
+          <div class="flex items-center gap-3 min-w-0">
+            <Avatar
+              :name="form.display_name || member.display_name"
+              :initials="form.initials || member.initials"
+              :avatar-url="form.avatar_url || member.avatar_url"
+              :size="44"
+            />
+            <div class="min-w-0">
+              <h2 class="text-base font-semibold text-donut-text truncate">{{ member.display_name }}</h2>
+              <p class="text-sm text-donut-muted">
+                {{ memberProjects.length }} projet{{ memberProjects.length > 1 ? 's' : '' }} attaché{{ memberProjects.length > 1 ? 's' : '' }}
+              </p>
+            </div>
+          </div>
+          <button
+            type="button"
+            class="text-xs font-medium text-red-500 hover:text-red-700"
+            @click="destroy"
+          >Supprimer</button>
+        </header>
+
+        <div>
+          <label class="block text-sm font-medium text-donut-text mb-1">Nom affiché *</label>
+          <input
+            v-model="form.display_name" type="text" maxlength="128"
+            class="w-full bg-white border border-donut-border rounded-lg px-3 py-2.5 text-sm outline-none focus:border-donut-text"
+            :class="fieldErrors.display_name ? 'border-red-400' : ''"
+          />
+          <p v-if="fieldErrors.display_name" class="text-xs text-red-600 mt-1">Nom requis.</p>
+        </div>
+
+        <div class="grid grid-cols-1 sm:grid-cols-[1fr,140px,160px] gap-4">
+          <div>
+            <label class="block text-sm font-medium text-donut-text mb-1">Slug</label>
+            <input
+              v-model="form.slug" type="text" maxlength="96"
+              class="w-full bg-white border border-donut-border rounded-lg px-3 py-2.5 text-sm font-mono outline-none focus:border-donut-text"
+              :class="fieldErrors.slug ? 'border-red-400' : ''"
+            />
+            <p class="text-xs text-donut-muted mt-1">Identifiant URL. Modifier le casse les liens externes existants.</p>
+          </div>
+          <div>
+            <label class="block text-sm font-medium text-donut-text mb-1">Initiales</label>
+            <input
+              v-model="form.initials" type="text" maxlength="8"
+              placeholder="Auto"
+              class="w-full bg-white border border-donut-border rounded-lg px-3 py-2.5 text-sm uppercase outline-none focus:border-donut-text"
+            />
+          </div>
+          <div>
+            <label class="block text-sm font-medium text-donut-text mb-1">Type</label>
+            <select
+              v-model="form.kind"
+              class="w-full bg-white border border-donut-border rounded-lg px-3 py-2.5 text-sm outline-none focus:border-donut-text"
+            >
+              <option value="person">Personne</option>
+              <option value="collective">Collectif</option>
+              <option value="org">Organisation</option>
+            </select>
+          </div>
+        </div>
+
+        <div>
+          <label class="block text-sm font-medium text-donut-text mb-1">Bio</label>
+          <textarea
+            v-model="form.bio" rows="3" maxlength="5000"
+            placeholder="Une courte présentation du membre (optionnel)."
+            class="w-full bg-white border border-donut-border rounded-lg px-3 py-2.5 text-sm outline-none focus:border-donut-text resize-y"
+          />
+        </div>
+
+        <div class="grid grid-cols-1 sm:grid-cols-2 gap-4">
+          <div>
+            <label class="block text-sm font-medium text-donut-text mb-1">Email</label>
+            <input
+              v-model="form.contact_email" type="email" maxlength="255"
+              placeholder="contact@example.org"
+              class="w-full bg-white border border-donut-border rounded-lg px-3 py-2.5 text-sm outline-none focus:border-donut-text"
+              :class="fieldErrors.contact_email ? 'border-red-400' : ''"
+            />
+            <p v-if="fieldErrors.contact_email" class="text-xs text-red-600 mt-1">Email invalide.</p>
+          </div>
+          <div>
+            <label class="block text-sm font-medium text-donut-text mb-1">Site web</label>
+            <input
+              v-model="form.website_url" type="url" maxlength="512"
+              placeholder="https://…"
+              class="w-full bg-white border border-donut-border rounded-lg px-3 py-2.5 text-sm outline-none focus:border-donut-text"
+              :class="fieldErrors.website_url ? 'border-red-400' : ''"
+            />
+            <p v-if="fieldErrors.website_url" class="text-xs text-red-600 mt-1">URL invalide.</p>
+          </div>
+        </div>
+
+        <div>
+          <label class="block text-sm font-medium text-donut-text mb-1">Avatar (URL)</label>
+          <input
+            v-model="form.avatar_url" type="url" maxlength="512"
+            placeholder="https://…"
+            class="w-full bg-white border border-donut-border rounded-lg px-3 py-2.5 text-sm outline-none focus:border-donut-text"
+            :class="fieldErrors.avatar_url ? 'border-red-400' : ''"
+          />
+          <p class="text-xs text-donut-muted mt-1">Une URL d'image. Si vide, on génère l'avatar depuis les initiales.</p>
+        </div>
+
+        <!-- Projets attachés (lecture seule, lien vers chaque fiche) -->
+        <div v-if="memberProjects.length > 0" class="rounded-lg border border-donut-border bg-gray-50 p-4">
+          <h3 class="text-xs font-semibold uppercase tracking-wider text-donut-muted mb-2">
+            Projets attachés ({{ memberProjects.length }})
+          </h3>
+          <ul class="space-y-1.5">
+            <li v-for="p in memberProjects" :key="p.id" class="flex items-center gap-2 text-sm">
+              <span class="w-2 h-2 rounded-full shrink-0" :style="{ background: p.category.color_hex }" />
+              <RouterLink
+                :to="{ name: 'project-detail', params: { slug: p.slug } }"
+                class="text-donut-text hover:underline truncate"
+              >{{ p.title }}</RouterLink>
+              <span class="ml-auto text-xs text-donut-muted">{{ p.role }} · {{ p.status }}</span>
+            </li>
+          </ul>
+        </div>
+
+        <div v-if="generalError" class="rounded-lg border border-red-200 bg-red-50 text-red-700 px-3 py-2 text-sm">
+          {{ generalError }}
+        </div>
+        <div v-if="justSaved" class="rounded-lg border border-green-200 bg-green-50 text-green-700 px-3 py-2 text-sm">
+          Modifications enregistrées.
+        </div>
+
+        <div class="flex items-center justify-end gap-2 pt-2 border-t border-donut-border">
+          <RouterLink
+            :to="{ name: 'admin-members' }"
+            class="px-4 py-2 rounded-lg text-sm font-medium border border-donut-border hover:bg-gray-50"
+          >Annuler</RouterLink>
+          <button
+            type="submit"
+            :disabled="submitting"
+            class="px-4 py-2 rounded-lg bg-donut-text text-white text-sm font-medium hover:bg-black disabled:opacity-50"
+          >
+            {{ submitting ? 'Enregistrement…' : 'Enregistrer' }}
+          </button>
+        </div>
+      </form>
+    </div>
+  </section>
+</template>
diff --git a/frontend/src/pages/admin/AdminMembersPage.vue b/frontend/src/pages/admin/AdminMembersPage.vue
index db6147b..1f8edf0 100644
--- a/frontend/src/pages/admin/AdminMembersPage.vue
+++ b/frontend/src/pages/admin/AdminMembersPage.vue
@@ -112,11 +112,17 @@ const KIND_LABEL = {
             </td>
             <td class="px-4 py-3 text-donut-muted">{{ formatDate(m.created_at) }}</td>
             <td class="px-4 py-3 text-right">
-              <button
-                type="button"
-                class="text-red-500 hover:text-red-700 text-xs font-medium"
-                @click="destroy(m)"
-              >Supprimer</button>
+              <div class="inline-flex items-center gap-3">
+                <RouterLink
+                  :to="{ name: 'admin-member-edit', params: { slug: m.slug } }"
+                  class="text-donut-text hover:underline text-xs font-medium"
+                >Éditer</RouterLink>
+                <button
+                  type="button"
+                  class="text-red-500 hover:text-red-700 text-xs font-medium"
+                  @click="destroy(m)"
+                >Supprimer</button>
+              </div>
             </td>
           </tr>
         </tbody>
diff --git a/frontend/src/router/index.ts b/frontend/src/router/index.ts
index 5a02e1a..0288a1e 100644
--- a/frontend/src/router/index.ts
+++ b/frontend/src/router/index.ts
@@ -38,6 +38,7 @@ const routes: RouteRecordRaw[] = [
       { path: 'admin/projects', name: 'admin-projects', component: () => import('@/pages/admin/AdminProjectsPage.vue'), beforeEnter: requireAdmin },
       { path: 'admin/projects/:slug/edit', name: 'admin-project-edit', component: () => import('@/pages/admin/AdminProjectEditPage.vue'), props: true, beforeEnter: requireAdmin },
       { path: 'admin/members', name: 'admin-members', component: () => import('@/pages/admin/AdminMembersPage.vue'), beforeEnter: requireAdmin },
+      { path: 'admin/members/:slug/edit', name: 'admin-member-edit', component: () => import('@/pages/admin/AdminMemberEditPage.vue'), props: true, beforeEnter: requireAdmin },
       { path: 'admin/categories', name: 'admin-categories', component: () => import('@/pages/admin/AdminCategoriesPage.vue'), beforeEnter: requireAdmin },
 
       { path: 'admin/login', name: 'admin-login', component: () => import('@/pages/AdminLoginPage.vue'), meta: { hideForAuthed: true } },