Guðmundsdóttir is a surname of Icelandic origin, meaning daughter of Guðmundur. In Icelandic names, the name is not strictly a surname, but a patronymic. The name may refer to:
Björk Guðmundsdóttir (born 1965), full name of Icelandic art-pop musician Björk Fríða Dís Guðmundsdóttir (born 1987), Icelandic musician and blues singer Rannveig Guðmundsdóttir (born 1940), Icelandic politician, government minister, member of the Althing (1989–2007) Rósa Guðmundsdóttir (1795–1855), Icelandic poet Svava Rós Guðmundsdóttir (born 1995), Icelandic football player
See also Guðmundsson