Forsell or Forssell is a Swedish surname. Notable people with the surname include:
Carl Forssell (1917–2005), Swedish fencer Daniel Forsell (born 1982), Swedish football defender Elisabeth Forsell (fl. 1747), Swedish weaver Erik Forssell (born 1982), Swedish professional ice hockey player Gry Forssell (born 1973), Swedish television host Hans Forssell (1843–1901), Swedish historian and political writer Harry Forssell (1907–2006), Olympic swimmer from Brazil Johan Forssell (politician, born 1855) (1855–1914), Swedish politician Johan Forssell (politician, born 1979) (born 1979), Swedish politician John Forsell (1868–1941), Swedish opera singer Kyllikki Forssell (1925–2019), Finnish actress Lars Forssell (1928–2007), Swedish writer Mikael Forssell (born 1981), Finnish football striker Petteri Forsell (born 1990), Finnish footballer William Forsell Kirby (1844–1912), English entomologist