Guðmundur (), sometimes rendered as Gudmundur, is an Icelandic male first name, sometimes shortened to Gummi or Gvendur.
The Icelandic surname Guðmundsson is a patronymic surname meaning son of Guðmundur. Guðmundsdóttir is a patronymic surname meaning daughter of Guðmundur.
Guðmundur may refer to:
Guðmundur Arason (1161–1237), 12th and 13th century Icelandic saintly bishop Gudmundur S. (Bo) Bodvarsson (1952–2006), director of the Earth Sciences Division at the Lawrence Berkeley National Laboratory Guðmundur Finnbogason (1873–1944), Icelandic philosopher Gudmundur Fjelsted (died 1961), politician in Manitoba, Canada Guðmundur Guðmundsson (handball) (born 1960), the coach of the Iceland national handball team Guðmundur Gunnarsson (born 1945), Icelandic labour leader and father of Icelandic singer Björk Guðmundur Reynir Gunnarsson (born 1989), Icelandic footballer Guðmundur Steinn Gunnarsson (born 1982), Icelandic musician and composer Guðmundur G. Hagalín (1898–1985), Icelandic writer Guðmundur Jónsson (born 1953), Icelandic architect who lives in Norway Guðmundur Kamban (1888–1945), Icelandic playwright and novelist Guðmundur Þór Kárason (born 1974), founder of Wit Puppets Guðmundur Kjærnested (1923–2005), commander in the Icelandic Coast Guard who took part in all three Anglo-Icelandic Cod Wars Guðmundur Ingi Kristinsson (born 1955), Icelandic politician Guðmundur Oddur Magnússon, Icelandic artist Guðmundur frá Miðdal (1895–1963), Icelandic artist Guðmundur Sigurjónsson (born 1947), Icelandic chess Grandmaster Guðmundur Ari Sigurjónsson (born 1988), Icelandic politician Guðmundur Steinarsson (born 1979), Icelandic international footballer Gudmundur Thorvaldsson, Icelandic actor Guðmundur Andri Thorsson (born 1957), Icelandic editor, critic, and author Guðmundur Torfason (born 1961), retired Icelandic footballer