Tan Sri Abu Zahar bin Dato' Nika Ujang (born 1 February 1944) is a Malaysian politician who has served as the Chairman of the Advisory Board of Malaysian Anti-Corruption Commission (MACC) under Chief Commissioner Azam Baki since May 2020.

[1] Abu Zahar served in the State Assembly of Negeri Sembilan from 1986 to 1995, before being a member of federal Parliament from 1995 to 1999.

After retiring, he became president of the Council of Former Elected Representatives (Mubarak).

[2] He was sworn in as President of the Senate on 26 April 2010.

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