[Purpose] The purpose of this study was to examine the intra- and inter-rater reliabilities of the Short Form Berg Balance Scale in institutionalized elderly people. [Subjects and Methods] A total of 30 elderly people in a nursing facility in Y city, South Korea, participated in this study. Two examiners administered the Short Form Berg Balance Scale to one subject to investigate inter-rater reliability. After a week, the same examiners administered the Short Form Berg Balance Scale once more to investigate intra-rater reliability. [Results] The intra-rater reliability was 0.83. The inter-rater reliability was 0.79. Both reliabilities were high (more than 0.7). [Conclusion] The Short Form Berg Balance Scale is a version of the Berg Balance Scale shortened by reducing the number of items, but its reliabilities were not lower than those of the Berg Balance Scale. The Short Form Berg Balance Scale can be useful clinically due to its short measurement time.