Sadat Hussain (24 November 1946 – 22 April 2020) was a Bangladeshi bureaucrat and the 9th chairman of the Bangladesh Public Service Commission, one of the country's leading constitutional bodies.

[3] At the end of Husain's educational career, he passed the competitive examination in 1970 and joined the Civil Service of Pakistan (CSP).

[4] He retired from the Bangladesh Civil Service while serving as the Cabinet Secretary for the period of 2002–2005.

He was appointed chairman of the Bangladesh Public Service Commission in 2007 and held the post till 2011.

Therein following the retirement of Jinatun Nessa Tahmina Begum, he took over as chairman on 9 May 2007, and held the office until 23 November 2011[6] Hussein died on 22 April 2020, at the age of 73.