Kari Juhani "Gary" Sundgren (born 25 October 1967) is a Swedish former professional footballer who played as either a right back or a central defender.
A Swedish international for nearly a decade, he won a total of 30 caps and represented his country at UEFA Euro 2000.
Sundgren was born in Vammala, Finland, but moved to Sweden with his parents as a toddler, being raised in Västerås.
After the 2001–02 campaign, with Zaragoza relegated, Sundgren returned to AIK, retiring from the game in 2006 after two seasons with two modest Stockholm sides, IFK Sollentuna and FC Djursholm.
One of his sons, Daniel, has also played for AIK, while his nephew Mikael Backlund is captain of the Calgary Flames of the National Hockey League.