Gunnar Gren (October 31, 1920 - November 1, 1991) was a famous Swedish footballer and part of the famous Gre-No-Li trio.

Considered one of Sweden's all-time greats, Gren won several trophies in his career, including the Swedish title with IFK Göteborg. He won the Guldbollen in 1946. In 1949, he joined AC Milan and became the 'Gre' part of the famous Gre-No-Li trio with his international teammates Gunnar Nordahl ('No') and Nils Liedholm ('Li').

Gren made his debut for Sweden on August 29, 1940 in the team's 3-2 win over Finland. His last cap for the team came on October 26, 1958 against Denmark in a 4-4 draw. At the time, Gren was an amazing 37 years, 360 days old. He was a member of the Sweden team that were runners-up in the 1958 World Cup. In all, Gren made 57 appearances for the national team, scoring 32 goals.

After retiring as a player, Gren managed IK Oddevold and GAIS .

Gren died the day after his 71st birthday and is buried in Västra Kyrkogården (Western Cemetery), Gothenburg, Vastra Gotaland, Sweden.