diff --git a/app/modules/loyalty/static/admin/js/loyalty-merchant-detail.js b/app/modules/loyalty/static/admin/js/loyalty-merchant-detail.js
index 45713dc3..e43d4ff1 100644
--- a/app/modules/loyalty/static/admin/js/loyalty-merchant-detail.js
+++ b/app/modules/loyalty/static/admin/js/loyalty-merchant-detail.js
@@ -39,6 +39,8 @@ function adminLoyaltyMerchantDetail() {
         showAddCategory: false,
         newCategoryName: '',
         newCategoryTranslations: { fr: '', de: '', lb: '' },
+        editingCategoryId: null,
+        editCategoryData: { name: '', translations: { fr: '', de: '', lb: '' } },
 
         // State
         loading: false,
@@ -307,6 +309,38 @@ function adminLoyaltyMerchantDetail() {
             }
         },
 
+        startEditCategory(cat) {
+            this.editingCategoryId = cat.id;
+            this.editCategoryData = {
+                name: cat.name,
+                translations: {
+                    fr: cat.name_translations?.fr || '',
+                    de: cat.name_translations?.de || '',
+                    lb: cat.name_translations?.lb || '',
+                },
+            };
+        },
+
+        async saveEditCategory(catId) {
+            if (!this.editCategoryData.name) return;
+            try {
+                const translations = { en: this.editCategoryData.name };
+                for (const [lang, val] of Object.entries(this.editCategoryData.translations)) {
+                    if (val) translations[lang] = val;
+                }
+
+                await apiClient.patch(`/admin/loyalty/stores/${this.selectedCategoryStoreId}/categories/${catId}`, {
+                    name: this.editCategoryData.name,
+                    name_translations: Object.keys(translations).length > 0 ? translations : null,
+                });
+                this.editingCategoryId = null;
+                await this.loadCategoriesForStore();
+                Utils.showToast('Category updated', 'success');
+            } catch (error) {
+                Utils.showToast(error.message || 'Failed to update category', 'error');
+            }
+        },
+
         async toggleCategoryActive(cat) {
             try {
                 await apiClient.patch(`/admin/loyalty/stores/${this.selectedCategoryStoreId}/categories/${cat.id}`, {
diff --git a/app/modules/loyalty/templates/loyalty/admin/merchant-detail.html b/app/modules/loyalty/templates/loyalty/admin/merchant-detail.html
index b04833bd..01559ce5 100644
--- a/app/modules/loyalty/templates/loyalty/admin/merchant-detail.html
+++ b/app/modules/loyalty/templates/loyalty/admin/merchant-detail.html
@@ -269,22 +269,68 @@
             <!-- Categories table -->
             <div class="space-y-2">
                 <template x-for="cat in storeCategories" :key="cat.id">
-                    <div class="flex items-center justify-between p-3 border border-gray-200 dark:border-gray-700 rounded-lg">
-                        <div class="flex items-center gap-3">
-                            <span class="text-sm font-medium text-gray-700 dark:text-gray-300" x-text="cat.name"></span>
-                            <span x-show="!cat.is_active" class="px-2 py-0.5 text-xs rounded-full bg-gray-100 text-gray-500 dark:bg-gray-700">{{ _('loyalty.common.inactive') }}</span>
+                    <div class="border border-gray-200 dark:border-gray-700 rounded-lg">
+                        <!-- View mode -->
+                        <div x-show="editingCategoryId !== cat.id" class="flex items-center justify-between p-3">
+                            <div class="flex items-center gap-3">
+                                <span class="text-sm font-medium text-gray-700 dark:text-gray-300" x-text="cat.name"></span>
+                                <template x-if="cat.name_translations">
+                                    <span class="text-xs text-gray-400" x-text="Object.entries(cat.name_translations || {}).filter(([k,v]) => v && k !== 'en').map(([k,v]) => k.toUpperCase() + ': ' + v).join(' · ')"></span>
+                                </template>
+                                <span x-show="!cat.is_active" class="px-2 py-0.5 text-xs rounded-full bg-gray-100 text-gray-500 dark:bg-gray-700">{{ _('loyalty.common.inactive') }}</span>
+                            </div>
+                            <div class="flex items-center gap-2">
+                                <button @click="startEditCategory(cat)" type="button"
+                                        aria-label="{{ _('loyalty.common.edit') }}"
+                                        class="text-purple-500 hover:text-purple-700">
+                                    <span x-html="$icon('pencil', 'w-4 h-4')"></span>
+                                </button>
+                                <button @click="toggleCategoryActive(cat)" type="button"
+                                        :aria-label="cat.is_active ? '{{ _('loyalty.common.deactivate') }}' : '{{ _('loyalty.common.activate') }}'"
+                                        class="text-sm" :class="cat.is_active ? 'text-orange-500 hover:text-orange-700' : 'text-green-500 hover:text-green-700'">
+                                    <span x-html="$icon(cat.is_active ? 'pause' : 'play', 'w-4 h-4')"></span>
+                                </button>
+                                <button @click="deleteCategory(cat.id)" type="button"
+                                        aria-label="{{ _('loyalty.common.delete') }}"
+                                        class="text-red-500 hover:text-red-700">
+                                    <span x-html="$icon('trash', 'w-4 h-4')"></span>
+                                </button>
+                            </div>
                         </div>
-                        <div class="flex items-center gap-2">
-                            <button @click="toggleCategoryActive(cat)" type="button"
-                                    :aria-label="cat.is_active ? '{{ _('loyalty.common.deactivate') }}' : '{{ _('loyalty.common.activate') }}'"
-                                    class="text-sm" :class="cat.is_active ? 'text-orange-500 hover:text-orange-700' : 'text-green-500 hover:text-green-700'">
-                                <span x-html="$icon(cat.is_active ? 'pause' : 'play', 'w-4 h-4')"></span>
-                            </button>
-                            <button @click="deleteCategory(cat.id)" type="button"
-                                    aria-label="{{ _('loyalty.common.delete') }}"
-                                    class="text-red-500 hover:text-red-700">
-                                <span x-html="$icon('trash', 'w-4 h-4')"></span>
-                            </button>
+                        <!-- Edit mode -->
+                        <div x-show="editingCategoryId === cat.id" class="p-3 bg-purple-50 dark:bg-purple-900/20">
+                            <div class="grid gap-2 md:grid-cols-2 mb-3">
+                                <div>
+                                    <label class="block text-xs font-medium text-gray-600 dark:text-gray-400 mb-1">Name (default)</label>
+                                    <input type="text" x-model="editCategoryData.name" maxlength="100"
+                                           class="w-full px-3 py-1.5 text-sm border border-gray-300 dark:border-gray-600 rounded-lg dark:bg-gray-700 dark:text-gray-300">
+                                </div>
+                                <div>
+                                    <label class="block text-xs font-medium text-gray-600 dark:text-gray-400 mb-1">French (FR)</label>
+                                    <input type="text" x-model="editCategoryData.translations.fr" maxlength="100"
+                                           class="w-full px-3 py-1.5 text-sm border border-gray-300 dark:border-gray-600 rounded-lg dark:bg-gray-700 dark:text-gray-300">
+                                </div>
+                                <div>
+                                    <label class="block text-xs font-medium text-gray-600 dark:text-gray-400 mb-1">German (DE)</label>
+                                    <input type="text" x-model="editCategoryData.translations.de" maxlength="100"
+                                           class="w-full px-3 py-1.5 text-sm border border-gray-300 dark:border-gray-600 rounded-lg dark:bg-gray-700 dark:text-gray-300">
+                                </div>
+                                <div>
+                                    <label class="block text-xs font-medium text-gray-600 dark:text-gray-400 mb-1">Luxembourgish (LB)</label>
+                                    <input type="text" x-model="editCategoryData.translations.lb" maxlength="100"
+                                           class="w-full px-3 py-1.5 text-sm border border-gray-300 dark:border-gray-600 rounded-lg dark:bg-gray-700 dark:text-gray-300">
+                                </div>
+                            </div>
+                            <div class="flex justify-end gap-2">
+                                <button @click="editingCategoryId = null" type="button"
+                                        class="px-3 py-1.5 text-sm font-medium text-gray-700 bg-white border border-gray-300 rounded-lg hover:bg-gray-50 dark:bg-gray-800 dark:text-gray-300 dark:border-gray-600">
+                                    {{ _('loyalty.common.cancel') }}
+                                </button>
+                                <button @click="saveEditCategory(cat.id)" :disabled="!editCategoryData.name"
+                                        class="px-3 py-1.5 text-sm font-medium text-white bg-purple-600 rounded-lg hover:bg-purple-700 disabled:opacity-50">
+                                    {{ _('loyalty.common.save') }}
+                                </button>
+                            </div>
                         </div>
                     </div>
                 </template>