Nicholas Mohtadi is a Canadian orthopaedic surgeon and former professional tennis player.
Mohtadi was born in England and is of Iranian descent. His father, Matthew Farhang Mohtadi, was an Iranian-Canadian academic and Olympic basketball player. The family settled in Calgary, Alberta in 1967.
A national junior champion, Mohtadi went to Oklahoma City University on a tennis scholarship and finished his education back in Canada at the University of Calgary, graduating in 1981 with a Doctor of Medicine.
Mohtadi competed briefly in professional tennis and qualified for the men's doubles main draw at Wimbledon in 1982.