Leiknir R.

Iþrottafelagið Leiknir, commonly known as Leiknir Reykjavik, is an Icelandic sports club. It is best known for its men's football team that plays in Pepsi Max-deild karla, the highest tier of Icelandic football. The club was founded in 1973 and is based in Breiðholt, Reykjavik. In 2014 the men's football team placed 1st in the 1. deild karla and won a promotion to the Urvalsdeild, however after just one season they were relegated to back to the first division. In 2021 they will return to the top flight having finished second in the 2020 season. Their home is Leiknisvollur, where they have played since their early years. The club's motto is "Pride of Breiðholt".

The club runs a youth setup in its district for children aged 6–18. The club is renowned for playing many homegrown players and developing young players. Currently the majority of their players are homegrown. Leiknir also has a basketball and karate division. The basketball team also plays in the lower leagues of the Icelandic basketball ladder, although the club does not run youth programs for basketball.