Apal - assi
- Apalachee
- Apalachee Bay
- Apalachee Massacre
- Apalachicola River
- apartment
- APB
- APO
- Apollo
- Apollo Theater
- Apollo-Soyuz test project
- Apostle Islands
- Apostle Islands National Lakeshore
- Appalachia
- Appalachian English
- Appalachian Mountains
- Appalachian National Scenic Trail
- Appalachian Plateau
- Appalachian Regional Commission
- Appalachian Trail
- appeal
- appeal brief
- appellate court
- appellate jurisdiction
- Apple Blossom
- apple brandy
- Apple Computer, Inc.
- apple jack
- Apple Jacks
- apple pie
- apple sauce
- apples
- Appleton
- application fee
- appointed counsel
- appointment clause
- Appomattox
- Appomattox Court House
- Appomattox Court House National Historical Park
- apportioned tax
- apportionment
