Per Johan Gustav Hammar (born 22 February 1994) is a Swedish professional footballer who plays for BK Häcken as a defender.
[16] In his first full season at the club, Hammar found his first team opportunities limited, as centre-backs Filip Helander and Erik Johansson were preferred instead.
With his first team opportunities at Malmö FF, Hammar moved to Norwegian side Fredrikstad on loan for the rest of the season.
[27] Following his loan spell at Fredrikstad came to an end, Hammar left Malmö FF, to join Örgryte IS, signing a two-year contract.
[31] In his first season at the club, Hammar established himself in the starting-eleven and went on to make twenty-eight appearances and scoring once in all competitions.
[32][33] Ahead of the 2017 season, Hammar was linked with a move away from Örgryte IS, with top clubs in Sweden keen on signing him.
[43] Hammar joined BK Häcken in November 2017, signing a one-year contract with an option for another three years.
[45] Hammar then made an impressive display against Finland U19 that saw earned Man of the Match on 15 August 2012[46] and scored his first Sweden U19 goal on 10 October 2012, in a 3–1 win over Wales U19.