Ansar Pervaiz, also spelled as (Ansar Parvez), HI, is a Pakistani scientist and a nuclear engineer who was the former chairman of the Pakistan Atomic Energy Commission (PAEC), and former chairman of the Board of Governors of International Atomic Energy Agency (IAEA).

Born in Lahore, Ansar Pervaiz received his early and intermediate education there.

In 1986, he came back to Pakistan and joined PAEC as a Principal Scientific Officer (PSO).

He was a general manager at the Chashma Nuclear Power Unit-II before elevating as a chairman of the agency.

He is also the chairman of the board of governors of Pakistan Institute of Engineering and Applied Sciences.