Lars Martin Jonsson (born January 2, 1982) is a Swedish former professional ice hockey defenceman.

He spent two years in North America playing for the Philadelphia Flyers organization, appearing in eight National Hockey League (NHL) games.

Although the Bruins continually showed interest in him, attempting to sign him several times, they ran into issues with the NHL Collective Bargaining Agreement, which now states that European prospects will no longer remain indefinite property of the teams that draft them.

Although an ankle sprain caused him to miss the beginning of the 2006–07 season, he started with the Flyers, mainly on the powerplay, but he was sent down to play for the Phantoms after two games to adjust to North American hockey.

[1] Having spent two seasons in North America, Jonsson returned to the Swedish Elitserien by signing a two-year contract with Brynäs IF on May 15, 2008.