AK
- A.K. (film)
- AK (radio program)
- AK (rapper)
- AK Press
- AK Steel
- AK the Savior
- AK vs AK
- AK-47
- AK-47 (rapper)
- Actinic keratosis
- AirAsia
- Ajith Kumar
- Ajnad al-Kavkaz
- Ak (disambiguation)
- Akan language
- Aktuaalne kaamera
- Alaska
- Ananda Krishnan
- Anil Kapoor
- Applied kinesiology
- Arknights
- Armia Krajowa
- Auckland War Memorial Museum
- Austrian Chamber of Labour
- Ayushmann Khurrana
- Azad Kashmir
- Justice and Development Party (Turkey)
- Kalashnikov rifle
- Knight of the Order of Australia
- List of auxiliaries of the United States Navy
- New Zealand AK class carriage
- Pakistan
- Patient AK