diff --git a/numpy-stubs/__init__.pyi b/numpy-stubs/__init__.pyi
index 53dc39e..fc5c961 100644
--- a/numpy-stubs/__init__.pyi
+++ b/numpy-stubs/__init__.pyi
@@ -571,7 +571,10 @@ def isclose(
 def array_equal(a1: _ArrayLike, a2: _ArrayLike) -> bool: ...
 def array_equiv(a1: _ArrayLike, a2: _ArrayLike) -> bool: ...
 
-# Numerical constants
+#
+# Constants
+#
+
 Inf: float
 Infinity: float
 NAN: float
@@ -587,5 +590,33 @@ infty: float
 nan: float
 pi: float
 
+ALLOW_THREADS: int
+BUFSIZE: int
+CLIP: int
+ERR_CALL: int
+ERR_DEFAULT: int
+ERR_IGNORE: int
+ERR_LOG: int
+ERR_PRINT: int
+ERR_RAISE: int
+ERR_WARN: int
+FLOATING_POINT_SUPPORT: int
+FPE_DIVIDEBYZERO: int
+FPE_INVALID: int
+FPE_OVERFLOW: int
+FPE_UNDERFLOW: int
+MAXDIMS: int
+MAY_SHARE_BOUNDS: int
+MAY_SHARE_EXACT: int
+RAISE: int
+SHIFT_DIVIDEBYZERO: int
+SHIFT_INVALID: int
+SHIFT_OVERFLOW: int
+SHIFT_UNDERFLOW: int
+UFUNC_BUFSIZE_DEFAULT: int
+WRAP: int
+little_endian: int
+tracemalloc_domain: int
+
 # TODO(shoyer): remove when the full numpy namespace is defined
 def __getattr__(name: str) -> Any: ...
diff --git a/tests/reveal/constants.py b/tests/reveal/constants.py
index 67ee9b3..8e00810 100644
--- a/tests/reveal/constants.py
+++ b/tests/reveal/constants.py
@@ -14,3 +14,31 @@
 reveal_type(np.infty)  # E: float
 reveal_type(np.nan)  # E: float
 reveal_type(np.pi)  # E: float
+
+reveal_type(np.ALLOW_THREADS)  # E: int
+reveal_type(np.BUFSIZE)  # E: int
+reveal_type(np.CLIP)  # E: int
+reveal_type(np.ERR_CALL)  # E: int
+reveal_type(np.ERR_DEFAULT)  # E: int
+reveal_type(np.ERR_IGNORE)  # E: int
+reveal_type(np.ERR_LOG)  # E: int
+reveal_type(np.ERR_PRINT)  # E: int
+reveal_type(np.ERR_RAISE)  # E: int
+reveal_type(np.ERR_WARN)  # E: int
+reveal_type(np.FLOATING_POINT_SUPPORT)  # E: int
+reveal_type(np.FPE_DIVIDEBYZERO)  # E: int
+reveal_type(np.FPE_INVALID)  # E: int
+reveal_type(np.FPE_OVERFLOW)  # E: int
+reveal_type(np.FPE_UNDERFLOW)  # E: int
+reveal_type(np.MAXDIMS)  # E: int
+reveal_type(np.MAY_SHARE_BOUNDS)  # E: int
+reveal_type(np.MAY_SHARE_EXACT)  # E: int
+reveal_type(np.RAISE)  # E: int
+reveal_type(np.SHIFT_DIVIDEBYZERO)  # E: int
+reveal_type(np.SHIFT_INVALID)  # E: int
+reveal_type(np.SHIFT_OVERFLOW)  # E: int
+reveal_type(np.SHIFT_UNDERFLOW)  # E: int
+reveal_type(np.UFUNC_BUFSIZE_DEFAULT)  # E: int
+reveal_type(np.WRAP)  # E: int
+reveal_type(np.little_endian)  # E: int
+reveal_type(np.tracemalloc_domain)  # E: int