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| Full name | Guðmundur Sigurjónsson |
|---|---|
| Country | Iceland |
| Born | September 25, 1947 Reykjavík |
| Title | Grandmaster |
| Peak rating | 2530 (January 1976) |
Guðmundur Sigurjónsson (born September 25, 1947 Reykjavík) is an Icelandic chess Grandmaster.
He became International Master in 1970, grandmaster in 1975 and has won the Icelandic Chess Championship three times (1965, 1968 and 1972). Played for Iceland in the Chess Olympiads of 1966, 1968, 1970, 1972, 1974, 1978, 1980, 1982, 1984 and 1986. His tournament successes included 1st at Reykjavík 1970, =1st at Sant Feliu de Guíxols 1974, =2nd at Hastings 1974-75, =1st at Ourense 1976, =2nd at Cienfuegos 1976 and =1st at Brighton 1982.
In the November 2009 FIDE list, he has an Elo rating of 2463, making him Iceland's number 10.