Pharmacy residency program in Korea was first implemented in Seoul National University Hospital in 1983 to train hospital pharmacists regarding theories and practice which were not appropriately educated in the colleges of pharmacy. There are currently seven hospitals operating the program in Korea, and all of those are located in Metropolitan Seoul area. Most hospitals administer examination and interview to select competent pharmacists while some other hospitals select those based on paperwork and interview tests. Although the program contents are mostly similar, some variation were identified between the programs. Title conferred after accomplishment of the program has not been officially accredited by educational authority. In June of 2008, Korean Society of Health-System Pharmacists promulgated an internal regulation as an attempt to standardize the program contents and to encourage efficient management of the program. Since the regulation has now been effective, it is expected that the regulation may help clinical pharmacy education in Korea move toward advanced level.