diff --git a/packages/twenty-server/scripts/setup-db.ts b/packages/twenty-server/scripts/setup-db.ts
index ca2c63e253..82fe1cce85 100644
--- a/packages/twenty-server/scripts/setup-db.ts
+++ b/packages/twenty-server/scripts/setup-db.ts
@@ -21,6 +21,18 @@ rawDataSource
       'create extension "uuid-ossp"',
     );
 
+    await performQuery(
+      'CREATE EXTENSION IF NOT EXISTS "unaccent"',
+      'create extension "unaccent"',
+    );
+
+    await performQuery(
+      `CREATE OR REPLACE FUNCTION unaccent_immutable(text) RETURNS text AS $$
+        SELECT public.unaccent($1)
+      $$ LANGUAGE sql IMMUTABLE;`,
+      'create immutable unaccent wrapper function',
+    );
+
     // We paused the work on FDW
     if (process.env.IS_FDW_ENABLED !== 'true') {
       return;
diff --git a/packages/twenty-server/src/engine/api/graphql/graphql-query-runner/utils/compute-where-condition-parts.ts b/packages/twenty-server/src/engine/api/graphql/graphql-query-runner/utils/compute-where-condition-parts.ts
index 9d0a1c5624..79aa7bd40b 100644
--- a/packages/twenty-server/src/engine/api/graphql/graphql-query-runner/utils/compute-where-condition-parts.ts
+++ b/packages/twenty-server/src/engine/api/graphql/graphql-query-runner/utils/compute-where-condition-parts.ts
@@ -101,8 +101,8 @@ export const computeWhereConditionParts = ({
 
       return {
         sql: `(
-          "${objectNameSingular}"."${key}" @@ to_tsquery('simple', :${key}${uuid}Ts) OR
-          "${objectNameSingular}"."${key}"::text ILIKE :${key}${uuid}Like
+          "${objectNameSingular}"."${key}" @@ to_tsquery('simple', public.unaccent_immutable(:${key}${uuid}Ts)) OR
+          public.unaccent_immutable("${objectNameSingular}"."${key}"::text) ILIKE public.unaccent_immutable(:${key}${uuid}Like)
         )`,
         params: {
           [`${key}${uuid}Ts`]: tsQuery,
diff --git a/packages/twenty-server/src/engine/core-modules/search/services/search.service.ts b/packages/twenty-server/src/engine/core-modules/search/services/search.service.ts
index 8a4cac0a3e..91b1e7989a 100644
--- a/packages/twenty-server/src/engine/core-modules/search/services/search.service.ts
+++ b/packages/twenty-server/src/engine/core-modules/search/services/search.service.ts
@@ -177,9 +177,9 @@ export class SearchService {
       ...(imageIdentifierField ? [imageIdentifierField] : []),
     ].map((field) => `"${field}"`);
 
-    const tsRankCDExpr = `ts_rank_cd("${SEARCH_VECTOR_FIELD.name}", to_tsquery(:searchTerms))`;
+    const tsRankCDExpr = `ts_rank_cd("${SEARCH_VECTOR_FIELD.name}", to_tsquery('simple', public.unaccent_immutable(:searchTerms)))`;
 
-    const tsRankExpr = `ts_rank("${SEARCH_VECTOR_FIELD.name}", to_tsquery(:searchTermsOr))`;
+    const tsRankExpr = `ts_rank("${SEARCH_VECTOR_FIELD.name}", to_tsquery('simple', public.unaccent_immutable(:searchTermsOr)))`;
 
     const cursorWhereCondition = this.computeCursorWhereCondition({
       after,
@@ -197,10 +197,10 @@ export class SearchService {
       queryBuilder.andWhere(
         new Brackets((qb) => {
           qb.where(
-            `"${SEARCH_VECTOR_FIELD.name}" @@ to_tsquery('simple', :searchTerms)`,
+            `"${SEARCH_VECTOR_FIELD.name}" @@ to_tsquery('simple', public.unaccent_immutable(:searchTerms))`,
             { searchTerms },
           ).orWhere(
-            `"${SEARCH_VECTOR_FIELD.name}" @@ to_tsquery('simple', :searchTermsOr)`,
+            `"${SEARCH_VECTOR_FIELD.name}" @@ to_tsquery('simple', public.unaccent_immutable(:searchTermsOr))`,
             { searchTermsOr },
           );
         }),
diff --git a/packages/twenty-server/src/engine/workspace-manager/workspace-sync-metadata/utils/__tests__/get-ts-vectors-column-expression.utils.spec.ts b/packages/twenty-server/src/engine/workspace-manager/workspace-sync-metadata/utils/__tests__/get-ts-vectors-column-expression.utils.spec.ts
index 0d420f3245..72138eb5dc 100644
--- a/packages/twenty-server/src/engine/workspace-manager/workspace-sync-metadata/utils/__tests__/get-ts-vectors-column-expression.utils.spec.ts
+++ b/packages/twenty-server/src/engine/workspace-manager/workspace-sync-metadata/utils/__tests__/get-ts-vectors-column-expression.utils.spec.ts
@@ -18,7 +18,9 @@ describe('getTsVectorColumnExpressionFromFields', () => {
     const fields = [nameTextField] as FieldTypeAndNameMetadata[];
     const result = getTsVectorColumnExpressionFromFields(fields);
 
-    expect(result).toContain("to_tsvector('simple', COALESCE(\"name\", ''))");
+    expect(result).toContain(
+      "to_tsvector('simple', COALESCE(public.unaccent_immutable(\"name\"), ''))",
+    );
   });
 
   it('should handle multiple fields', () => {
@@ -28,13 +30,22 @@ describe('getTsVectorColumnExpressionFromFields', () => {
       emailsEmailsField,
     ] as FieldTypeAndNameMetadata[];
     const result = getTsVectorColumnExpressionFromFields(fields);
-    const expected = `
-    to_tsvector('simple', COALESCE("nameFirstName", '') || ' ' || COALESCE("nameLastName", '') || ' ' || COALESCE("jobTitle", '') || ' ' || 
-      COALESCE("emailsPrimaryEmail", '') || ' ' ||
-      COALESCE(SPLIT_PART("emailsPrimaryEmail", '@', 2), ''))
-  `.trim();
 
-    expect(result.trim()).toBe(expected);
+    expect(result).toContain(
+      'COALESCE(public.unaccent_immutable("nameFirstName"), \'\')',
+    );
+    expect(result).toContain(
+      'COALESCE(public.unaccent_immutable("nameLastName"), \'\')',
+    );
+    expect(result).toContain(
+      'COALESCE(public.unaccent_immutable("jobTitle"), \'\')',
+    );
+    expect(result).toContain(
+      'COALESCE(public.unaccent_immutable("emailsPrimaryEmail"), \'\')',
+    );
+    expect(result).toContain(
+      "COALESCE(public.unaccent_immutable(SPLIT_PART(\"emailsPrimaryEmail\", '@', 2)), '')",
+    );
   });
 
   it('should handle rich text fields', () => {
@@ -43,7 +54,9 @@ describe('getTsVectorColumnExpressionFromFields', () => {
     ] as FieldTypeAndNameMetadata[];
     const result = getTsVectorColumnExpressionFromFields(fields);
 
-    expect(result).toBe("to_tsvector('simple', COALESCE(\"body\", ''))");
+    expect(result).toBe(
+      "to_tsvector('simple', COALESCE(public.unaccent_immutable(\"body\"), ''))",
+    );
   });
 
   it('should handle rich text v2 fields', () => {
@@ -53,7 +66,7 @@ describe('getTsVectorColumnExpressionFromFields', () => {
     const result = getTsVectorColumnExpressionFromFields(fields);
 
     expect(result).toBe(
-      "to_tsvector('simple', COALESCE(\"bodyV2Markdown\", ''))",
+      "to_tsvector('simple', COALESCE(public.unaccent_immutable(\"bodyV2Markdown\"), ''))",
     );
   });
 });
diff --git a/packages/twenty-server/src/engine/workspace-manager/workspace-sync-metadata/utils/get-ts-vector-column-expression.util.ts b/packages/twenty-server/src/engine/workspace-manager/workspace-sync-metadata/utils/get-ts-vector-column-expression.util.ts
index 2e85a35d71..509bd42c8d 100644
--- a/packages/twenty-server/src/engine/workspace-manager/workspace-sync-metadata/utils/get-ts-vector-column-expression.util.ts
+++ b/packages/twenty-server/src/engine/workspace-manager/workspace-sync-metadata/utils/get-ts-vector-column-expression.util.ts
@@ -82,10 +82,10 @@ const getColumnExpression = (
   switch (fieldType) {
     case FieldMetadataType.EMAILS:
       return `
-      COALESCE(${quotedColumnName}, '') || ' ' ||
-      COALESCE(SPLIT_PART(${quotedColumnName}, '@', 2), '')`;
+      COALESCE(public.unaccent_immutable(${quotedColumnName}), '') || ' ' ||
+      COALESCE(public.unaccent_immutable(SPLIT_PART(${quotedColumnName}, '@', 2)), '')`;
 
     default:
-      return `COALESCE(${quotedColumnName}, '')`;
+      return `COALESCE(public.unaccent_immutable(${quotedColumnName}), '')`;
   }
 };