diff --git a/.i18nrc.cjs b/.i18nrc.cjs
index 2efe5f9662..53acf05468 100644
--- a/.i18nrc.cjs
+++ b/.i18nrc.cjs
@@ -9,7 +9,7 @@ module.exports = defineConfig({
   entry: 'src/locales/en',
   entryLocale: 'en',
   output: 'src/locales',
-  outputLocales: ['zh', 'zh-TW', 'ru', 'ja', 'ko', 'fr', 'es', 'ar', 'tr'],
+  outputLocales: ['zh', 'zh-TW', 'ru', 'ja', 'ko', 'fr', 'es', 'ar', 'tr', 'pt-BR'],
   reference: `Special names to keep untranslated: flux, photomaker, clip, vae, cfg, stable audio, stable cascade, stable zero, controlnet, lora, HiDream.
   'latent' is the short form of 'latent space'.
   'mask' is in the context of image processing.
diff --git a/CODEOWNERS b/CODEOWNERS
index 840ffdea39..922dc2cb21 100644
--- a/CODEOWNERS
+++ b/CODEOWNERS
@@ -54,10 +54,11 @@
 
 # Translations
 /src/locales/                                     @Yorha4D @KarryCharon @shinshin86 @Comfy-Org/comfy_maintainer @Comfy-org/comfy_frontend_devs
+/src/locales/pt-BR/                               @JonatanAtila @Yorha4D @KarryCharon @shinshin86
 
 # LLM Instructions (blank on purpose)
 .claude/
 .cursor/
 .cursorrules
 **/AGENTS.md
-**/CLAUDE.md
\ No newline at end of file
+**/CLAUDE.md
diff --git a/apps/desktop-ui/src/components/common/LanguageSelector.vue b/apps/desktop-ui/src/components/common/LanguageSelector.vue
index d8a5dc8cf6..55703930c6 100644
--- a/apps/desktop-ui/src/components/common/LanguageSelector.vue
+++ b/apps/desktop-ui/src/components/common/LanguageSelector.vue
@@ -59,7 +59,8 @@ const LOCALES = [
   ['fr', 'Français'],
   ['es', 'Español'],
   ['ar', 'عربي'],
-  ['tr', 'Türkçe']
+  ['tr', 'Türkçe'],
+  ['pt-BR', 'Português (BR)']
 ] as const satisfies ReadonlyArray<[string, string]>
 
 type SupportedLocale = (typeof LOCALES)[number][0]
diff --git a/apps/desktop-ui/src/i18n.ts b/apps/desktop-ui/src/i18n.ts
index 5f0739db75..350376ff7a 100644
--- a/apps/desktop-ui/src/i18n.ts
+++ b/apps/desktop-ui/src/i18n.ts
@@ -40,7 +40,8 @@ const localeLoaders: Record<
   ru: () => import('@frontend-locales/ru/main.json'),
   tr: () => import('@frontend-locales/tr/main.json'),
   zh: () => import('@frontend-locales/zh/main.json'),
-  'zh-TW': () => import('@frontend-locales/zh-TW/main.json')
+  'zh-TW': () => import('@frontend-locales/zh-TW/main.json'),
+  'pt-BR': () => import('@frontend-locales/pt-BR/main.json')
 }
 
 const nodeDefsLoaders: Record<
@@ -55,7 +56,8 @@ const nodeDefsLoaders: Record<
   ru: () => import('@frontend-locales/ru/nodeDefs.json'),
   tr: () => import('@frontend-locales/tr/nodeDefs.json'),
   zh: () => import('@frontend-locales/zh/nodeDefs.json'),
-  'zh-TW': () => import('@frontend-locales/zh-TW/nodeDefs.json')
+  'zh-TW': () => import('@frontend-locales/zh-TW/nodeDefs.json'),
+  'pt-BR': () => import('@frontend-locales/pt-BR/nodeDefs.json')
 }
 
 const commandsLoaders: Record<
@@ -70,7 +72,8 @@ const commandsLoaders: Record<
   ru: () => import('@frontend-locales/ru/commands.json'),
   tr: () => import('@frontend-locales/tr/commands.json'),
   zh: () => import('@frontend-locales/zh/commands.json'),
-  'zh-TW': () => import('@frontend-locales/zh-TW/commands.json')
+  'zh-TW': () => import('@frontend-locales/zh-TW/commands.json'),
+  'pt-BR': () => import('@frontend-locales/pt-BR/commands.json')
 }
 
 const settingsLoaders: Record<
@@ -85,7 +88,8 @@ const settingsLoaders: Record<
   ru: () => import('@frontend-locales/ru/settings.json'),
   tr: () => import('@frontend-locales/tr/settings.json'),
   zh: () => import('@frontend-locales/zh/settings.json'),
-  'zh-TW': () => import('@frontend-locales/zh-TW/settings.json')
+  'zh-TW': () => import('@frontend-locales/zh-TW/settings.json'),
+  'pt-BR': () => import('@frontend-locales/pt-BR/settings.json')
 }
 
 // Track which locales have been loaded
diff --git a/src/i18n.ts b/src/i18n.ts
index d3e34245ca..c0ffd1094e 100644
--- a/src/i18n.ts
+++ b/src/i18n.ts
@@ -36,7 +36,8 @@ const localeLoaders: Record<
   ru: () => import('./locales/ru/main.json'),
   tr: () => import('./locales/tr/main.json'),
   zh: () => import('./locales/zh/main.json'),
-  'zh-TW': () => import('./locales/zh-TW/main.json')
+  'zh-TW': () => import('./locales/zh-TW/main.json'),
+  'pt-BR': () => import('./locales/pt-BR/main.json')
 }
 
 const nodeDefsLoaders: Record<
@@ -51,7 +52,8 @@ const nodeDefsLoaders: Record<
   ru: () => import('./locales/ru/nodeDefs.json'),
   tr: () => import('./locales/tr/nodeDefs.json'),
   zh: () => import('./locales/zh/nodeDefs.json'),
-  'zh-TW': () => import('./locales/zh-TW/nodeDefs.json')
+  'zh-TW': () => import('./locales/zh-TW/nodeDefs.json'),
+  'pt-BR': () => import('./locales/pt-BR/nodeDefs.json')
 }
 
 const commandsLoaders: Record<
@@ -66,7 +68,8 @@ const commandsLoaders: Record<
   ru: () => import('./locales/ru/commands.json'),
   tr: () => import('./locales/tr/commands.json'),
   zh: () => import('./locales/zh/commands.json'),
-  'zh-TW': () => import('./locales/zh-TW/commands.json')
+  'zh-TW': () => import('./locales/zh-TW/commands.json'),
+  'pt-BR': () => import('./locales/pt-BR/commands.json')
 }
 
 const settingsLoaders: Record<
@@ -81,7 +84,8 @@ const settingsLoaders: Record<
   ru: () => import('./locales/ru/settings.json'),
   tr: () => import('./locales/tr/settings.json'),
   zh: () => import('./locales/zh/settings.json'),
-  'zh-TW': () => import('./locales/zh-TW/settings.json')
+  'zh-TW': () => import('./locales/zh-TW/settings.json'),
+  'pt-BR': () => import('./locales/pt-BR/settings.json')
 }
 
 // Track which locales have been loaded
diff --git a/src/locales/pt-BR/commands.json b/src/locales/pt-BR/commands.json
new file mode 100644
index 0000000000..0967ef424b
--- /dev/null
+++ b/src/locales/pt-BR/commands.json
@@ -0,0 +1 @@
+{}
diff --git a/src/locales/pt-BR/main.json b/src/locales/pt-BR/main.json
new file mode 100644
index 0000000000..0967ef424b
--- /dev/null
+++ b/src/locales/pt-BR/main.json
@@ -0,0 +1 @@
+{}
diff --git a/src/locales/pt-BR/nodeDefs.json b/src/locales/pt-BR/nodeDefs.json
new file mode 100644
index 0000000000..0967ef424b
--- /dev/null
+++ b/src/locales/pt-BR/nodeDefs.json
@@ -0,0 +1 @@
+{}
diff --git a/src/locales/pt-BR/settings.json b/src/locales/pt-BR/settings.json
new file mode 100644
index 0000000000..0967ef424b
--- /dev/null
+++ b/src/locales/pt-BR/settings.json
@@ -0,0 +1 @@
+{}
diff --git a/src/platform/settings/constants/coreSettings.ts b/src/platform/settings/constants/coreSettings.ts
index 0931733ea4..7590c0f88f 100644
--- a/src/platform/settings/constants/coreSettings.ts
+++ b/src/platform/settings/constants/coreSettings.ts
@@ -416,7 +416,8 @@ export const CORE_SETTINGS: SettingParams[] = [
       { value: 'fr', text: 'Français' },
       { value: 'es', text: 'Español' },
       { value: 'ar', text: 'عربي' },
-      { value: 'tr', text: 'Türkçe' }
+      { value: 'tr', text: 'Türkçe' },
+      { value: 'pt-BR', text: 'Português (BR)' }
     ],
     defaultValue: () => navigator.language.split('-')[0] || 'en'
   },