Objective. The aim of this study is to investigate the different ethnic features of juvenile idiopathic arthritis (JIA)-associated uveitis (JIA-U) in Korea and in Western countries. We also tried to determine whether a specific HLA-DRB1 allele could be a predictive risk factor of uveitis in JIA. Methods. We analyzed pediatric rheumatology and ophthalmology medical records for JIA between March 2006 and March 2016. A total of 233 were included in this study. Results. Of all patients, 31 (13.3%) developed uveitis: 14 oligoarticular, three polyarticular, six systemic, seven enthesitis-related, and one undifferentiated-type JIA. In oligoarticular JIA, 26.4% developed uveitis. The percentage of females JIA-U was 54.8%, and median age of JIA onset was 7.02 years in JIA-U. Antinuclear antibody (ANA) positivity in oligoarticular JIA-U was 57.1%. Of 31 JIA-U cases, 26 (83.9%) were clinically asymptomatic when diagnosed. The allele frequency of HLA-DRB1*09 of total JIA-U was higher than that of JIA without uveitis. HLA-DRB1*09 and HLA-DRB1*12 were higher in oligoarticular JIA-U than in JIA without uveitis. Conclusion. Korean JIA-U has different features from JIA-U of Western countries. The sex ratio and age of JIA onset showed no significant differences in Korean JIA-U. ANA positivity was more common in JIA-U than in JIA without uveitis only in oligoarticular type JIA. These differences might be due to genetic factors, especially HLA-DRB1. We suggest HLA-DRB1*09 and HLA-DRB1*12 in oligoarticular JIA as risk factors of JIA-U in Korea. This is the first study to analyze associations between HLA-DRB1 and JIA-U in Korea.