diff --git a/holidays/countries/kazakhstan.py b/holidays/countries/kazakhstan.py
index f477123f2..4097c9004 100644
--- a/holidays/countries/kazakhstan.py
+++ b/holidays/countries/kazakhstan.py
@@ -74,6 +74,7 @@ class Kazakhstan(
         - `2022 <https://adilet.zan.kz/kaz/docs/P2200000796>`_
         - `2023 <https://adilet.zan.kz/kaz/docs/P2300000326>`_
         - `2024 <https://adilet.zan.kz/kaz/docs/G24G0000109>`_
+        - `2025 <https://adilet.zan.kz/rus/docs/G24G0000436>`_
     """
 
     country = "KZ"
@@ -195,6 +196,7 @@ class KazakhstanIslamicHolidays(_CustomIslamicHolidays):
         2022: (JUL, 9),
         2023: (JUN, 28),
         2024: (JUN, 16),
+        2025: (JUN, 6),
     }
 
 
@@ -284,6 +286,7 @@ class KazakhstanStaticHolidays:
         ),
         2023: (JUL, 7, JUL, 1),
         2024: (MAY, 8, MAY, 4),
+        2025: (JAN, 3, JAN, 5),
     }
 
     special_public_holidays_observed = {
diff --git a/snapshots/countries/KZ_COMMON.json b/snapshots/countries/KZ_COMMON.json
index fcf1d1045..de10267eb 100644
--- a/snapshots/countries/KZ_COMMON.json
+++ b/snapshots/countries/KZ_COMMON.json
@@ -528,6 +528,7 @@
     "2024-12-16": "Independence Day",
     "2025-01-01": "New Year's Day",
     "2025-01-02": "New Year's Day",
+    "2025-01-03": "Day off (substituted from 01/05/2024)",
     "2025-01-07": "Orthodox Christmas",
     "2025-03-08": "International Women's Day",
     "2025-03-10": "International Women's Day (observed)",
diff --git a/tests/countries/test_kazakhstan.py b/tests/countries/test_kazakhstan.py
index c72d0560e..1567cc1a6 100644
--- a/tests/countries/test_kazakhstan.py
+++ b/tests/countries/test_kazakhstan.py
@@ -127,6 +127,7 @@ def test_kurban_ait(self):
             "2022-07-09",
             "2023-06-28",
             "2024-06-16",
+            "2025-06-06",
         )
 
     def test_observed(self):
@@ -175,6 +176,12 @@ def test_observed(self):
             "2023-12-18",
             "2024-03-25",
             "2024-07-08",
+            "2025-03-10",
+            "2025-03-24",
+            "2025-03-25",
+            "2025-07-07",
+            "2025-09-01",
+            "2025-10-27",
         )
         self.assertHoliday(observed_holidays)
         self.assertNoNonObservedHoliday(observed_holidays)
@@ -232,6 +239,7 @@ def test_substituted_holidays(self):
             "2022-10-24",
             "2023-07-07",
             "2024-05-08",
+            "2025-01-03",
         )
 
     def test2022(self):