Koster

Koster may refer to:

People

 * Koster (surname), a common Dutch surname

Places

 * Koster Islands, two islands west of Sweden
 * Koster, North West, a town in South Africa named after Bastiaan Koster, the original farm owner
 * Koster Site, an archeological site in Illinois named after Theodore Koster, the original farm owner

Other uses

 * Koster (beer), a German beer
 * HSwMS Koster (M73), a Swedish Koster-class mine countermeasures vessel
 * Koster Commando, a light infantry regiment of the South African Army