okk

OKK is an acronym used in multiple contexts, most commonly in the Balkans where it denotes a sports club named with the words Omladinski košarkaški klub or Odbojkaški klub. The phrase Omladinski košarkaški klub translates to "youth basketball club," and the initialism OKK arises from the initial letters of those words. The designation is widely seen in club names across former Yugoslavia, reflecting local conventions for naming youth or regional teams. In several places, OKK is predominantly associated with basketball, but it is also used by volleyball clubs that use Odbojkaški klub.

A notable example is OKK Beograd, a Belgrade-based basketball club founded in the mid-1940s as Omladinski košarkaški klub Beograd. The club played in the Yugoslav and later Serbian basketball leagues and contributed players to the national program; over time, the organization has undergone changes as names and structures in the region evolved.

In contemporary usage, OKK remains a common component in the names of smaller local clubs and is often understood to signify either a youth basketball program or a regional volleyball group, depending on the local language and sport. The acronym thus has no single global affiliation but represents a familiar pattern in regional sports naming as well as occasional non-sport contexts.