Frandsen is a surname of Danish origin. It may refer to:
Aage Frandsen (1890–1968), Danish gymnast Anders Frandsen, Danish actor and musician Mikkel Frandsen (1892–1981), American physical chemist John Frandsen (composer), Danish composer and organist Jørgen Frandsen, Danish handball player Kevin Frandsen, American baseball player Per Frandsen, Danish soccer player Rasmus Frandsen (1886–1974), Danish rower Scott Frandsen, Canadian rower Thomas Frandsen, Danish soccer player