diff --git a/stdlib/3/bisect.pyi b/stdlib/3/bisect.pyi
new file mode 100644
index 000000000..e2e12b696
--- /dev/null
+++ b/stdlib/3/bisect.pyi
@@ -0,0 +1,12 @@
+from typing import Sequence, TypeVar
+
+_T = TypeVar('_T')
+
+def insort_left(a: Sequence[_T], x: _T, lo: int = 0, hi: int = None): pass
+def insort_right(a: Sequence[_T], x: _T, lo: int = 0, hi: int = None): pass
+
+def bisect_left(a: Sequence[_T], x: _T, lo: int = 0, hi: int = None): pass
+def bisect_right(a: Sequence[_T], x: _T, lo: int = 0, hi: int = None): pass
+
+insort = insort_right
+bisect = bisect_right