The Hafiz Ahmad Khan Mosque (Tamil: அபீசு அகமது கான் மசூதி) is a mosque situated in the neighbourhood of Chepauk in Chennai, India. The mosque was constructed in 1818 by Hafiz Ahmad Khan, a Carnatic court official and younger brother of Bahram Jung who constructed the Bahram Jung Mosque. The mosque is situated next to Vivekanandar Illam.