Rabies has been reported in dogs, cattle, and raccoon dogs in Korea, especially in the provinces of Gyeonggi and Gangwon. The aim of this study was to investigate the seroprevalence of the rabies in wild Korean raccoon dogs by using 50 blood samples collected in Gyeonggi and Gangwon provinces. Antibodies against rabies were measured by using a fluorescent antibody virus neutralization test. Of the 50 blood samples tested, 20 raccoon dogs (40%) tested positive. Seropositive animals were distributed in Paju, Yangpyeong, Goyang, Yangju, Yanggu, and Hoengseong cities.