Pétur Guðmundsson

Pétur Guðmundsson may refer to:
 * Pétur Guðmundsson (1786–1852), patriarch of the Engeyjarætt
 * Pétur Guðmundsson (basketball) (born 1958), Icelandic basketball player
 * Pétur Guðmundsson (athlete) (born 1962), Icelandic shotputter