diff --git a/pandas/core/groupby/groupby.py b/pandas/core/groupby/groupby.py
index c07bc56377151..1a3a32375be54 100644
--- a/pandas/core/groupby/groupby.py
+++ b/pandas/core/groupby/groupby.py
@@ -2437,7 +2437,8 @@ def std(
         Parameters
         ----------
         ddof : int, default 1
-            Degrees of freedom.
+            Delta Degrees of Freedom. The divisor used in calculations is ``N - ddof``,
+            where ``N`` represents the number of elements.
 
         engine : str, default None
             * ``'cython'`` : Runs the operation through C-extensions from cython.