Per Jonas Karlsson (born 2 January 1986) is a Swedish former professional footballer who played as a defender.
He has won two caps for the Sweden national team, and two Allsvenskan titles (2009 and 2018) with AIK.
Club career
He came through the ranks of Solna club Vasalunds IF and was picked up by AIK as a teenager. After coming through the academy at AIK he secured a regular starting-spot at AIK in late 2004, but broke his leg in beginning of 2005 against Väsby United which ruled him out for much of that season. When he became fit again he was loaned out to Väsby United, a feeder club to AIK, for the 2006 season. However, he broke his arm this time and wasn't able to play any matches for them. During the 2007 season he was loaned out to Åtvidabergs FF in Superettan and was finally able to play a whole season. During 2008 he once again became a member of the regular starting eleven at AIK, which he had lost after his leg fracture in 2005.
He played in 26 Allsvenskan games as AIK won the 2009 Allsvenskan. 9 years later, he played in all 30 games as AIK won the 2018 Allsvenskan.
On 15 July 2020 he made his 396th appearance for AIK in a 2020 Allsvenskan 1-0 win against IK Sirius, surpassing Daniel Tjernström at 395 games and setting a club record. On 28 September 2020, Karlsson made his 322nd Allsvenskan appearance, breaking Gustav Sjöberg's record for most Allsvenskan appearances for AIK.
International career
Karlsson was a part of the Sweden U21 squad that advanced to the semifinals of the 2009 UEFA European Under-21 Championship that took place on Swedish home soil, but did not play.
Karlsson made his senior Sweden debut in January 2010 in a friendly game against Oman. He was called up to a 2014 FIFA World Cup qualifier against Germany as a replacement for Jonas Olsson, but did not play. He won his second cap in a friendly against the Ivory Coast in January 2015.
In May 2019, Karlsson was called up to Sweden's UEFA Euro 2020 qualifiers against Malta and Spain, but did not play.