diff --git a/graalpython/com.oracle.graal.python.test/src/tests/test_csv.py b/graalpython/com.oracle.graal.python.test/src/tests/test_csv.py
index cc226c7679..0ab59379f3 100644
--- a/graalpython/com.oracle.graal.python.test/src/tests/test_csv.py
+++ b/graalpython/com.oracle.graal.python.test/src/tests/test_csv.py
@@ -46,6 +46,15 @@ class TestUnicodeCharacters(unittest.TestCase):
     def test_builtin_type_as_dialect(self):
         self.assertIsInstance(csv.reader(re.ASCII, int), type(csv.reader([])))
 
+    def test_reader_writer_type_names(self):
+        import _csv
+        self.assertIs(type(csv.reader([])), _csv.Reader)
+        self.assertEqual(_csv.Reader.__name__, 'reader')
+        self.assertEqual(_csv.Reader.__module__, '_csv')
+        with TemporaryFile("w") as fileobj:
+            self.assertIs(type(csv.writer(fileobj)), _csv.Writer)
+        self.assertEqual(_csv.Writer.__name__, 'writer')
+
     def test_read_utf_32_delimiter(self):
         test_data = ['a\U0001F642b']
         reader = csv.reader(test_data, delimiter="\U0001F642")
diff --git a/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/PythonBuiltinClassType.java b/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/PythonBuiltinClassType.java
index 6585f85507..e185eec3cb 100644
--- a/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/PythonBuiltinClassType.java
+++ b/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/PythonBuiltinClassType.java
@@ -1314,8 +1314,8 @@ def takewhile(predicate, iterable):
 
     // csv
     CSVDialect("Dialect", PythonObject, newBuilder().publishInModule("_csv").basetype().slots(CSVDialectBuiltins.SLOTS)),
-    CSVReader("Reader", PythonObject, newBuilder().publishInModule("_csv").basetype().disallowInstantiation().slots(CSVReaderBuiltins.SLOTS)),
-    CSVWriter("Writer", PythonObject, newBuilder().publishInModule("_csv").basetype().disallowInstantiation()),
+    CSVReader("reader", PythonObject, newBuilder().moduleName("_csv").basetype().disallowInstantiation().slots(CSVReaderBuiltins.SLOTS)),
+    CSVWriter("writer", PythonObject, newBuilder().moduleName("_csv").basetype().disallowInstantiation()),
 
     // codecs
     PEncodingMap("EncodingMap", PythonObject, newBuilder().disallowInstantiation()),
diff --git a/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/csv/CSVModuleBuiltins.java b/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/csv/CSVModuleBuiltins.java
index 1e0513e8d5..f933d8c448 100644
--- a/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/csv/CSVModuleBuiltins.java
+++ b/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/csv/CSVModuleBuiltins.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2021, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
@@ -121,6 +121,8 @@ public void initialize(Python3Core core) {
         addBuiltinConstant("QUOTE_STRINGS", QUOTE_STRINGS.ordinal());
         addBuiltinConstant("QUOTE_NOTNULL", QUOTE_NOTNULL.ordinal());
         addBuiltinConstant(T__DIALECTS, PFactory.createDict(core.getLanguage()));
+        addBuiltinConstant("Reader", PythonBuiltinClassType.CSVReader);
+        addBuiltinConstant("Writer", PythonBuiltinClassType.CSVWriter);
         super.initialize(core);
     }