diff --git a/CHANGELOG.md b/CHANGELOG.md
index ac2cb8036dc71..2a2c9191b71a1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -449,7 +449,7 @@ Contributed by Marc Mueller (PR [20156](https://github.com/python/mypy/pull/2015
 For best performance, mypy can be compiled to C extension modules using mypyc. This makes
 mypy 3-5x faster than when interpreted with pure Python. We now build and upload mypyc
 accelerated mypy wheels for `win_arm64` and `cp314t-...` to PyPI, making it easy for Windows
-users on ARM and those using the free theading builds for Python 3.14 to realise this speedup
+users on ARM and those using the free threading builds for Python 3.14 to realise this speedup
 -- just `pip install` the latest mypy.
 
 Contributed by Marc Mueller
diff --git a/mypy/inspections.py b/mypy/inspections.py
index 1a869438101fe..6e2018262944c 100644
--- a/mypy/inspections.py
+++ b/mypy/inspections.py
@@ -297,7 +297,7 @@ def cmp_types(x: TypeInfo, y: TypeInfo) -> int:
         result = {}
         for base in sorted_bases:
             if not combined_attrs[base]:
-                # Skip bases where everytihng was filtered out.
+                # Skip bases where everything was filtered out.
                 continue
             result[base] = combined_attrs[base]
         return result
diff --git a/mypy/plugins/dataclasses.py b/mypy/plugins/dataclasses.py
index 5b39b11a623cc..790fe618c95c7 100644
--- a/mypy/plugins/dataclasses.py
+++ b/mypy/plugins/dataclasses.py
@@ -914,7 +914,7 @@ def _infer_dataclass_attr_init_type(
 
         # Perform a simple-minded inference from the signature of __set__, if present.
         # We can't use mypy.checkmember here, since this plugin runs before type checking.
-        # We only support some basic scanerios here, which is hopefully sufficient for
+        # We only support some basic scenarios here, which is hopefully sufficient for
         # the vast majority of use cases.
         if not isinstance(t, Instance):
             return default