Gershon Beresford Onesimus Collier (February 16, 1927 – May 25, 1994) was a Sierra Leone Creole diplomat, Chief Justice of Sierra Leone, and educator.

[2] When Albert Margai left the Sierra Leone People's Party in 1958, Collier went with him and became a member of the People's National Party's first executive committee.

[2] In 1961, he became Sierra Leone's first permanent representative to the United Nations.

[3] In 1967, Margai arranged his nomination as Chief Justice of Sierra Leone.

[4] Collier's granddaughter Napheesa Collier won a gold medal in basketball at the 2020 Summer Olympics and 2024 Summer Olympics.