Frank Willem Drost (born 22 March 1963) is a former freestyle and butterfly swimmer from the Netherlands who competed at the 1984 and 1988 Summer Olympics.

His best individual Olympic result came in 1984, when he finished in sixth place (1:51.62) in the 200 m freestyle.

[1] Drost won two bronze medals at the 1985 European Championships in Sofia, Bulgaria.

[2] Nationally, he collected five titles in 1987 and 1988, in 100 m and 200 m butterfly and 200 m freestyle.

This biographical article related to a Dutch swimmer is a stub.