Muhammed-Kabeer Olarewaju Gbaja-Biamila (pronounced /kəˈbɪər ˈbɑːdʒɑː ˌbiːəˈmɪlə/) (born September 24, 1977 in Los Angeles, California), commonly referred to as "KGB", is an American football defensive end who is currently a free agent. He was drafted by the Green Bay Packers in the fifth round of the 2000 NFL Draft. He played college football at San Diego State.

A Pro Bowl selection in 2003, he is the older brother of NFL linebacker Akbar Gbaja-Biamila.

Gbaja-Biamila attendeed Crenshaw High School in Los Angeles, California and was a student and a three-year letterman in football and track and field. In football, as a senior, he was named the Central City Defensive Lineman of the Year.