diff --git a/tests/test_atom_from_annotations.py b/tests/test_atom_from_annotations.py
index e881e018..195c6fb6 100644
--- a/tests/test_atom_from_annotations.py
+++ b/tests/test_atom_from_annotations.py
@@ -1,5 +1,5 @@
 # ------------------------------------------------------------------------------
-# Copyright (c) 2021-2023, Nucleic Development Team.
+# Copyright (c) 2021-2024, Nucleic Development Team.
 #
 # Distributed under the terms of the Modified BSD License.
 #
@@ -35,6 +35,7 @@
     Callable,
     DefaultDict,
     Dict,
+    FixedTuple,
     Float,
     Instance,
     Int,
@@ -49,6 +50,8 @@
 )
 from atom.atom import set_default
 
+# XXX fixed tuple from annotations
+
 
 def test_ignore_annotations():
     class A(Atom, use_annotations=False):
@@ -202,10 +205,11 @@ class A(Atom, use_annotations=True):
         (TDict[int, int], Dict(Int(), Int()), 1),
         (TDefaultDict[int, int], DefaultDict(Int(), Int()), 1),
         (TTuple[int], Tuple(), 0),
-        (TTuple[int], Tuple(Int()), 1),
+        (TTuple[int], FixedTuple(Int()), 1),
         (TTuple[int, ...], Tuple(Int()), 1),
-        (TTuple[int, float], Tuple(), 1),
-        (TTuple[tuple, int], Tuple(), 1),
+        (TTuple[int, float], FixedTuple(Int(), Float()), 1),
+        (TTuple[tuple, int], FixedTuple(Tuple(), Int()), 1),
+        (TTuple[tuple[int, int], int], FixedTuple(FixedTuple(Int(), Int()), Int()), -1),
     ]
     + (
         [
@@ -219,10 +223,15 @@ class A(Atom, use_annotations=True):
             (dict[int, int], Dict(Int(), Int()), 1),
             (defaultdict[int, int], DefaultDict(Int(), Int()), 1),
             (tuple[int], Tuple(), 0),
-            (tuple[int], Tuple(Int()), 1),
+            (tuple[int], FixedTuple(Int()), 1),
             (tuple[int, ...], Tuple(Int()), 1),
-            (tuple[int, float], Tuple(), 1),
-            (tuple[tuple, int], Tuple(), 1),
+            (tuple[int, float], FixedTuple(Int(), Float()), 1),
+            (tuple[tuple, int], FixedTuple(Tuple(), Int()), 1),
+            (
+                tuple[tuple[int, int], int],
+                FixedTuple(FixedTuple(Int(), Int()), Int()),
+                -1,
+            ),
         ]
         if sys.version_info >= (3, 9)
         else []
@@ -236,6 +245,8 @@ class A(Atom, use_annotations=True, type_containers=depth):
     if depth == 0:
         if isinstance(member, Dict):
             assert A.a.validate_mode[1] == (None, None)
+        elif isinstance(member, FixedTuple):
+            assert A.a.items == ()
         else:
             assert A.a.item is None
     else:
@@ -252,6 +263,9 @@ class A(Atom, use_annotations=True, type_containers=depth):
                 assert type(k) is type(mk)
                 assert type(v) is type(mv)
                 assert f(A()) == mf(A())
+        elif isinstance(member, FixedTuple):
+            for v, mv in zip(A.a.validate_mode[1], member.validate_mode[1]):
+                assert type(v) is type(mv)
         else:
             assert type(A.a.item) is type(member.item)  # noqa: E721
             if isinstance(member.item, List):
@@ -270,6 +284,7 @@ class A(Atom, use_annotations=True, type_containers=depth):
         (Union[Any, None], Value, None),
         (object, Value, 2),
         (TCallable, Callable, lambda x: x),
+        (TTuple[int], FixedTuple(Int()), (1,)),
         (TList, List, [1]),
         (TSet, Set, {1}),
         (TDict, Dict, {1: 2}),
@@ -279,6 +294,7 @@ class A(Atom, use_annotations=True, type_containers=depth):
     ]
     + (
         [
+            (tuple[int], FixedTuple(Int()), (1,)),
             (list, List, [1]),
             (set, Set, {1}),
             (dict, Dict, {1: 2}),
diff --git a/tests/test_typing_utils.py b/tests/test_typing_utils.py
index d3f306af..3456f55b 100644
--- a/tests/test_typing_utils.py
+++ b/tests/test_typing_utils.py
@@ -9,7 +9,7 @@
 
 import sys
 from collections.abc import Iterable
-from typing import Dict, List, Optional, Set, TypeVar, Union
+from typing import Dict, List, Optional, Set, Tuple, TypeVar, Union
 
 import pytest
 
@@ -25,6 +25,7 @@
 @pytest.mark.parametrize(
     "ty, outputs",
     [
+        (Tuple[int], (tuple,)),
         (List[int], (list,)),
         (Dict[str, int], (dict,)),
         (Set[int], (set,)),
@@ -35,6 +36,7 @@
     ]
     + (
         [
+            (tuple[int], (tuple,)),
             (list[int], (list,)),
             (dict[str, int], (dict,)),
             (set[int], (set,)),
diff --git a/tests/test_validators.py b/tests/test_validators.py
index 80ed7959..87261f06 100644
--- a/tests/test_validators.py
+++ b/tests/test_validators.py
@@ -20,6 +20,7 @@
 unicode_handler
 unicode_promote_handler
 tuple_handler
+fixed_tuple_handler
 list_handler
 container_list_handler
 set_handler
@@ -57,6 +58,7 @@
     Dict,
     Enum,
     Event,
+    FixedTuple,
     Float,
     FloatRange,
     ForwardInstance,
@@ -133,6 +135,10 @@ def c(x: object) -> int:
         (Tuple(int), [(1,)], [(1,)], [(1.0,), (None,)]),
         (Tuple(TSet[int]), [({1},)], [({1},)], [(1.0,), (None,)]),
         (Tuple(Optional[int]), [(1, None)], [(1, None)], [("",)]),
+        (FixedTuple(Int()), [(1,)], [(1,)], [(None,), (1, 2)]),
+        (FixedTuple(Int(), Str()), [(1, "")], [(1, "")], [(None,), (1, 2)]),
+        (FixedTuple(int), [(1,)], [(1,)], [(None,), (1, 2)]),
+        (FixedTuple(TSet[int]), [({1},)], [({1},)], [(None,), (1, 2)]),
         (List(), [[1]], [[1]], [(1,)]),
         (List(Int()), [[1]], [[1]], [[1.0]]),
         (List(float), [[1.0]], [[1.0]], [[1], [None]]),
@@ -253,6 +259,7 @@ class MemberTest(Atom):
     [
         (List(), "List", 1, "Member or None"),
         (Tuple(), "Tuple", 1, "Member or None"),
+        (FixedTuple(int), "FixedTuple", 1, "tuple of types or Members"),
         (ContainerList(), "ContainerList", 1, "Member or None"),
         (Set(), "Set", 1, "Member or None"),
         (Dict(), "Dict", 1, "2-tuple of Member or None"),
diff --git a/tests/type_checking/test_tuple.yml b/tests/type_checking/test_tuple.yml
index 8f854ab8..0ef5f1f4 100644
--- a/tests/type_checking/test_tuple.yml
+++ b/tests/type_checking/test_tuple.yml
@@ -98,3 +98,37 @@
 
     reveal_type(A.m)  # N: Revealed type is "{{ member_type }}"
     reveal_type(A().m)  # N: Revealed type is "{{ member_value_type }}"
+
+- case: fixed_tuple
+  parametrized:
+  # Tuple with no defaults
+  - member: FixedTuple
+    member_instance: FixedTuple(int)
+    member_type: atom.tuple.FixedTuple[builtins.tuple[builtins.int]]
+    member_value_type: builtins.tuple[builtins.int]
+  - member: FixedTuple
+    member_instance: FixedTuple(int, float)
+    member_type: atom.tuple.FixedTuple[builtins.tuple[builtins.int, builtins.float]]
+    member_value_type: builtins.tuple[builtins.int, builtins.float]
+  - member: FixedTuple
+    member_instance: FixedTuple(int, float, str)
+    member_type: atom.tuple.Tuple[builtins.tuple[builtins.int, builtins.float, builtins.str]]
+    member_value_type: builtins.tuple[builtins.int, builtins.float, builtins.str]
+  - member: FixedTuple, Int
+    member_instance: FixedTuple(Int())
+    member_type: atom.tuple.Tuple[builtins.tuple[builtins.int]]
+    member_value_type: builtins.tuple[builtins.int]
+  # Tuple with defaults
+  - member: FixedTuple
+    member_instance: FixedTuple(int, default=(3,))
+    member_type: atom.tuple.FixedTuple[builtins.tuple[builtins.int]]
+    member_value_type: builtins.tuple[builtins.int]
+  main: |
+    from atom.api import Atom, {{ member }}
+
+    class A(Atom):
+      m = {{ member_instance }}
+
+    reveal_type(A.m)  # N: Revealed type is "{{ member_type }}"
+    reveal_type(A().m)  # N: Revealed type is "{{ member_value_type }}"
+