During routine surveys for pest and pathogen incidences at a golf course in 2007, circular to irregular patches of stunted, chlorotic and wilted turfgrass var. Pencross were noticed in Jinhae, Gyeongnam province, Korea. Soil samples collected from those diseased patches of the golf course yielded high population (average 126 nematodes/ 100 cm3) of a stunt nematode, Tylenchorhynchus claytoni, which is described and illustrated in this paper with light and scanning electron micrographs. This is the first report on the occurrence of T. claytoni in turfgrass in Korea.