diff --git a/apps/desktop/src/lib/connection/connectionVisibleDatabases.ts b/apps/desktop/src/lib/connection/connectionVisibleDatabases.ts
index 16cd73c23..8117d40ce 100644
--- a/apps/desktop/src/lib/connection/connectionVisibleDatabases.ts
+++ b/apps/desktop/src/lib/connection/connectionVisibleDatabases.ts
@@ -3,7 +3,9 @@ import { filterDatabaseNamesForVisiblePicker, normalizeVisibleDatabaseSelection
 
 const DRAFT_VISIBLE_DATABASES_PREFIX = "__visible_draft_";
 
-const UNSUPPORTED_VISIBLE_DATABASE_TYPES = new Set<DatabaseType>(["cloudflare-d1", "elasticsearch", "qdrant", "milvus", "weaviate", "chromadb", "etcd", "zookeeper"]);
+// Turso and Cloudflare D1 connections target one fixed SQLite-compatible `main` namespace;
+// listing account-level databases requires separate platform credentials, not the database connection.
+const UNSUPPORTED_VISIBLE_DATABASE_TYPES = new Set<DatabaseType>(["turso", "cloudflare-d1", "elasticsearch", "qdrant", "milvus", "weaviate", "chromadb", "etcd", "zookeeper"]);
 
 type VisibleDatabaseConnectionFields = Pick<
   ConnectionConfig,
diff --git a/packages/app-tests/connectionVisibleDatabases.test.ts b/packages/app-tests/connectionVisibleDatabases.test.ts
index f869f5222..5648f249a 100644
--- a/packages/app-tests/connectionVisibleDatabases.test.ts
+++ b/packages/app-tests/connectionVisibleDatabases.test.ts
@@ -86,6 +86,10 @@ test("Cloudflare D1 does not offer a visible database filter for its fixed main
   assert.equal(connectionCanChooseVisibleDatabases(config({ db_type: "cloudflare-d1" })), false);
 });
 
+test("Turso does not offer a visible database filter for its fixed main namespace", () => {
+  assert.equal(connectionCanChooseVisibleDatabases(config({ db_type: "turso" })), false);
+});
+
 test("OceanBase Oracle uses schema filtering for visible object selection", () => {
   assert.equal(connectionUsesVisibleSchemaFilter(config({ db_type: "oceanbase-oracle" })), true);
   assert.equal(connectionUsesVisibleSchemaFilter(config({ db_type: "mysql", driver_profile: "oceanbase" })), false);