Knattspyrnufélag Breiðholts, abbreviated as KB, is an Icelandic football club based in the Breiðholt area of the capital, Reykjavík. KB is used as reserve team for Leiknir Reykjavík and does not run a youth setup. It was founded in 2007.

KB Breidholt is a soccer team based in Iceland, known for their competitive spirit and strong teamwork on the field. The team is made up of talented players who are dedicated to the sport and strive for success in every match they play. With a history of impressive performances and a loyal fan base, KB Breidholt is a force to be reckoned with in Icelandic soccer. Their distinctive blue and white jerseys and passionate supporters make them a standout team in the Icelandic soccer scene. Whether playing at home or away, KB Breidholt always gives their all and leaves everything on the field.