Marteinsson is an Icelandic patronymic surname, literally meaning "son of Martein". Notable people with the name include:
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Andri Marteinsson
Andri Marteinsson (born 31 January 1965) is an Icelandic former footballer who played as a midfielder. He won 20 caps for the Iceland national football team between 1984 and 1994.
Andri was most recently the manager of 1. deild karla side ÍR, ...
(born 1965), Icelandic footballer
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Pétur Marteinsson
Pétur Hafliði Marteinsson (born 14 July 1973) is a retired Icelandic football player. He played for Hammarby IF in Sweden, Stabæk in Norway and Stoke City in England during his professional career. Marteinsson was capped 36 times and scored ...
(born 1973), Icelandic footballer
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Icelandic-language masculine surnames