AH
- A-ha
- AAH (disambiguation)
- AH register
- AHH (disambiguation)
- Aa!
- Achievement Hunter
- Adam Hughes
- Adolf Hitler
- Afghanistan
- Ah (song)
- Ah Ah Ah (disambiguation)
- Air Algérie
- Air handler
- Albert Heijn
- Alternate history
- Ampere hour
- Anhui
- Anno Hegirae
- Arcana Heart
- Asian Highway Network
- Attack helicopter
- Austria-Hungary
- Authentication Header
- Avalon Hill
- Charles Aznavour
- Constitution Protection Office
- Duman (band)
- List of Latin-script digraphs
- List of United States Navy hospital ships
- Schwabe (publisher)