Komba Sylvester Mansa-Musa Mondeh (31 October 1966 – January 2023)[1][2] was a top-ranking officer in the Sierra Leonean army.

Mondeh was one of six young soldiers in the Sierra Leonean Army that ousted president Joseph Saidu Momoh led All People's Congress (APC) government on 29 April 1992.

He served as the deputy head of state of Sierra Leone in 1996, under Brigadier Julius Maada Bio of the NPRC.

He was then sent on a Senior Division Staff Course in Nigeria in July 1996, and was invited to attend the Nigerian War College the following year, where in addition to his military qualification, he earned a master's degree in Strategic Studies.

At the rank of Colonel in May 1999, General Mondeh was appointed Defence Adviser to the Federal Republic of Nigeria, where he served for over four years.