Ahmadkhan or Ahmad Khan (Persian: احمدخان) may refer to:
- Ahmadkhan, Lorestan, a village in Iran
- Ahmad Akbar Khan (born 1984), Australian born Pakistani footballer
- Sultan Ahmad Khan, 19th-century sultan of the Principality of Herat in Afghanistan
- Malak Ahmad Khan Yusufzai, Afghan ruler who founded Pakhtunkhwa in the 16th century
- Ahmad Khan Bangash, Nawab of Farrukhabad who commanded a division of the Afghan army in the Battle of Panipat
- Ahmad Shah I (r. 1411–1442), born Ahmad Khan, ruler of the Gujarat Sultanate in India; founded the city of Ahmedabad
- Ahmad Shah III (r. 1554–1561), born Ahmad Khan, ruler of the Gujarat Sultanate