diff --git a/lib/matplotlib/axes/_axes.pyi b/lib/matplotlib/axes/_axes.pyi
index 1877cc192b15..0c4be37b064b 100644
--- a/lib/matplotlib/axes/_axes.pyi
+++ b/lib/matplotlib/axes/_axes.pyi
@@ -602,7 +602,7 @@ class Axes(_AxesBase):
         weights: ArrayLike | None = ...,
         *,
         complementary: bool=...,
-        orientation: Literal["vertical", "horizonatal"]=...,
+        orientation: Literal["vertical", "horizontal"]=...,
         compress: bool=...,
         data=...,
         **kwargs
diff --git a/lib/matplotlib/pyplot.py b/lib/matplotlib/pyplot.py
index 1f50a05a54f7..2dd8e76d98b4 100644
--- a/lib/matplotlib/pyplot.py
+++ b/lib/matplotlib/pyplot.py
@@ -3241,7 +3241,7 @@ def ecdf(
     weights: ArrayLike | None = None,
     *,
     complementary: bool = False,
-    orientation: Literal["vertical", "horizonatal"] = "vertical",
+    orientation: Literal["vertical", "horizontal"] = "vertical",
     compress: bool = False,
     data=None,
     **kwargs,