diff --git a/.github/workflows/spellcheck.yml b/.github/workflows/spellcheck.yml
new file mode 100644
index 00000000..299203cd
--- /dev/null
+++ b/.github/workflows/spellcheck.yml
@@ -0,0 +1,25 @@
+name: Check spelling in documentation
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: 3.9
+    - uses: actions/cache@v2
+      name: Configure pip caching
+      with:
+        path: ~/.cache/pip
+        key: ${{ runner.os }}-pip-${{ hashFiles('**/setup.py') }}
+        restore-keys: |
+          ${{ runner.os }}-pip-
+    - name: Install dependencies
+      run: |
+        pip install codespell
+    - name: Check spelling
+      run: codespell docs/*.rst --ignore-words docs/codespell-ignore-words.txt
diff --git a/docs/codespell-ignore-words.txt b/docs/codespell-ignore-words.txt
new file mode 100644
index 00000000..a625cde5
--- /dev/null
+++ b/docs/codespell-ignore-words.txt
@@ -0,0 +1 @@
+AddWordsToIgnoreHere