diff --git a/docs/data/data-grid/localization/data.json b/docs/data/data-grid/localization/data.json
index 3d56245281bd3..cc0c430a6377e 100644
--- a/docs/data/data-grid/localization/data.json
+++ b/docs/data/data-grid/localization/data.json
@@ -211,7 +211,7 @@
     "languageTag": "ro-RO",
     "importName": "roRO",
     "localeName": "Romanian",
-    "missingKeysCount": 18,
+    "missingKeysCount": 0,
     "totalKeysCount": 132,
     "githubLink": "https://github.com/mui/mui-x/blob/master/packages/x-data-grid/src/locales/roRO.ts"
   },
diff --git a/docs/data/date-pickers/localization/data.json b/docs/data/date-pickers/localization/data.json
index 14a69bf378d62..6874c9a28d40a 100644
--- a/docs/data/date-pickers/localization/data.json
+++ b/docs/data/date-pickers/localization/data.json
@@ -227,7 +227,7 @@
     "languageTag": "ro-RO",
     "importName": "roRO",
     "localeName": "Romanian",
-    "missingKeysCount": 14,
+    "missingKeysCount": 0,
     "totalKeysCount": 50,
     "githubLink": "https://github.com/mui/mui-x/blob/master/packages/x-date-pickers/src/locales/roRO.ts"
   },
diff --git a/packages/x-data-grid/src/locales/roRO.ts b/packages/x-data-grid/src/locales/roRO.ts
index 778b94e1b1725..c7949fe83a726 100644
--- a/packages/x-data-grid/src/locales/roRO.ts
+++ b/packages/x-data-grid/src/locales/roRO.ts
@@ -32,15 +32,16 @@ const roROGrid: Partial<GridLocaleText> = {
   toolbarQuickFilterDeleteIconLabel: 'Ștergere',
 
   // Prompt toolbar field
-  // toolbarPromptControlPlaceholder: 'Type a prompt…',
-  // toolbarPromptControlWithRecordingPlaceholder: 'Type or record a prompt…',
-  // toolbarPromptControlRecordingPlaceholder: 'Listening for prompt…',
-  // toolbarPromptControlLabel: 'Prompt input',
-  // toolbarPromptControlRecordButtonDefaultLabel: 'Record',
-  // toolbarPromptControlRecordButtonActiveLabel: 'Stop recording',
-  // toolbarPromptControlSendActionLabel: 'Send',
-  // toolbarPromptControlSendActionAriaLabel: 'Send prompt',
-  // toolbarPromptControlErrorMessage: 'An error occurred while processing the request. Please try again with a different prompt.',
+  toolbarPromptControlPlaceholder: 'Scrie un prompt…',
+  toolbarPromptControlWithRecordingPlaceholder: 'Scrie sau înregistrează un prompt…',
+  toolbarPromptControlRecordingPlaceholder: 'Ascultare prompt…',
+  toolbarPromptControlLabel: 'Introducere prompt',
+  toolbarPromptControlRecordButtonDefaultLabel: 'Înregistrează',
+  toolbarPromptControlRecordButtonActiveLabel: 'Oprește înregistrare',
+  toolbarPromptControlSendActionLabel: 'Trimite',
+  toolbarPromptControlSendActionAriaLabel: 'Trimite prompt',
+  toolbarPromptControlErrorMessage:
+    'A apărut o eroare la procesare. Încercați din nou cu un alt prompt.',
 
   // Export selector toolbar button text
   toolbarExport: 'Export',
@@ -50,11 +51,11 @@ const roROGrid: Partial<GridLocaleText> = {
   toolbarExportExcel: 'Download în format Excel',
 
   // Columns management text
-  // columnsManagementSearchTitle: 'Search',
-  // columnsManagementNoColumns: 'No columns',
-  // columnsManagementShowHideAllText: 'Show/Hide All',
-  // columnsManagementReset: 'Reset',
-  // columnsManagementDeleteIconLabel: 'Clear',
+  columnsManagementSearchTitle: 'Caută',
+  columnsManagementNoColumns: 'Nicio coloană',
+  columnsManagementShowHideAllText: 'Arată/Ascunde tot',
+  columnsManagementReset: 'Resetează',
+  columnsManagementDeleteIconLabel: 'Șterge',
 
   // Filter panel text
   filterPanelAddFilter: 'Adăugare filtru',
@@ -70,9 +71,9 @@ const roROGrid: Partial<GridLocaleText> = {
 
   // Filter operators text
   filterOperatorContains: 'conține',
-  // filterOperatorDoesNotContain: 'does not contain',
+  filterOperatorDoesNotContain: 'nu conține',
   filterOperatorEquals: 'este egal cu',
-  // filterOperatorDoesNotEqual: 'does not equal',
+  filterOperatorDoesNotEqual: 'nu este egal cu',
   filterOperatorStartsWith: 'începe cu',
   filterOperatorEndsWith: 'se termină cu',
   filterOperatorIs: 'este',
@@ -93,9 +94,9 @@ const roROGrid: Partial<GridLocaleText> = {
 
   // Header filter operators text
   headerFilterOperatorContains: 'Conține',
-  // headerFilterOperatorDoesNotContain: 'Does not contain',
+  headerFilterOperatorDoesNotContain: 'Nu conține',
   headerFilterOperatorEquals: 'Egal cu',
-  // headerFilterOperatorDoesNotEqual: 'Does not equal',
+  headerFilterOperatorDoesNotEqual: 'Nu este egal cu',
   headerFilterOperatorStartsWith: 'Începe cu',
   headerFilterOperatorEndsWith: 'Se termină cu',
   headerFilterOperatorIs: 'Este',
diff --git a/packages/x-date-pickers/src/locales/roRO.ts b/packages/x-date-pickers/src/locales/roRO.ts
index d14bca8bc3b71..a48ecad511185 100644
--- a/packages/x-date-pickers/src/locales/roRO.ts
+++ b/packages/x-date-pickers/src/locales/roRO.ts
@@ -26,10 +26,10 @@ const roROPickers: Partial<PickersLocaleText> = {
   // DateRange labels
   start: 'Început',
   end: 'Sfârșit',
-  // startDate: 'Start date',
-  // startTime: 'Start time',
-  // endDate: 'End date',
-  // endTime: 'End time',
+  startDate: 'Data de început',
+  startTime: 'Ora de început',
+  endDate: 'Data de sfârșit',
+  endTime: 'Ora de sfârșit',
 
   // Action bar
   cancelButtonLabel: 'Anulare',
@@ -74,24 +74,24 @@ const roROPickers: Partial<PickersLocaleText> = {
   fieldYearPlaceholder: (params) => 'A'.repeat(params.digitAmount),
   fieldMonthPlaceholder: (params) => (params.contentType === 'letter' ? 'LLLL' : 'LL'),
   fieldDayPlaceholder: () => 'ZZ',
-  // fieldWeekDayPlaceholder: params => params.contentType === 'letter' ? 'EEEE' : 'EE',
+  fieldWeekDayPlaceholder: (params) => (params.contentType === 'letter' ? 'ZZZZ' : 'ZZ'),
   fieldHoursPlaceholder: () => 'hh',
   fieldMinutesPlaceholder: () => 'mm',
   fieldSecondsPlaceholder: () => 'ss',
   fieldMeridiemPlaceholder: () => 'aa',
 
   // View names
-  // year: 'Year',
-  // month: 'Month',
-  // day: 'Day',
-  // weekDay: 'Week day',
-  // hours: 'Hours',
-  // minutes: 'Minutes',
-  // seconds: 'Seconds',
-  // meridiem: 'Meridiem',
+  year: 'An',
+  month: 'Luna',
+  day: 'Ziua',
+  weekDay: 'Ziua saptămânii',
+  hours: 'Ore',
+  minutes: 'Minute',
+  seconds: 'Secunde',
+  meridiem: 'Meridiem',
 
   // Common
-  // empty: 'Empty',
+  empty: 'Gol',
 };
 
 export const roRO = getPickersLocalization(roROPickers);