The Ljutomer Trotter (Slovene: Ljutomerski kasač) is a traditional breed of horse, originating in Slovenia in the town Ljutomer, where it was developed around year 1880. It is a breed of typical medium-sized warmbloods, with a majority of animals being bay. Until around 1960 animals were used for various farm tasks and transport, while today the breed is being reared and used primarily for sport purposes (harness racing) and recreational riding.