Placide Nyangala is a Gabonese footballer. Besides Gabon, he has played in France, Austria, and Saudi Arabia. He played in two matches for the Gabon national football team in 1994. He was also named in Gabon's squad for the 1994 African Cup of Nations tournament.
Placide Adams (1929 – 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.
Placide Viel (1815 — 1877), born Eulalie-Victoire Jacqueline Viel, was a French Roman Catholic professed religious and mother general who was active in organizing relief during the Franco-Prussian War.