Placide Adams (August 30, 1929 – March 29, 2003) was an American jazz double bassist, who worked prolifically with a wide circle of New Orleans jazz stars over his 50-year career.
He was the son of the New Orleans pianist Dolly Adams, and the brother of New Orleans bassist Jerry Adams, and New Orleans recording session guitarist, Justin Adams, all of whom were descended from a popular New Orleans family band whose roots dated back to the 19th century.