Clarence Seay (born January 7, 1957, Washington, DC) is a jazz bassist and composer. He has been an acoustic bassist with the Wallace Roney Quintet for over 15 years. Seay, also known as "Big C", is a disciple of the Paul Chambers school of jazz bass playing which features a style of walking harmonically inventive bass lines in a robust manner by positioning strings relatively high from the fingerboard – a practice mostly abandoned by modern bass players because of its physical difficulty.