Frank Drost
Frank Willem Drost is a former freestyle and butterfly swimmer from the Netherlands who competed at the 1984 Summer Olympics|1984] and 1988 Summer Olympics. His best individual Olympic result came in 1984, when he finished in sixth place in the 200 m freestyle.
His elder brother Peter was also a swimmer. They are not related to Monique. Drost won two bronze medals at the 1985 European Championships in Sofia, Bulgaria. Nationally, he collected five titles in 1987 and 1988, in 100 m and 200 m butterfly and 200 m freestyle. Between 1982 and 1986 he set 15 records in 200–1500 m freestyle, 200 m butterfly and 4×100 m freestyle relay.