Hiatus hernia is rather comon in European but it is known to be rare in Korean. The incidence in Korean hasbeen reported to be 1.4% or 1 cases in 1,000 consecutive esophagrams performed at this department. All the casesreported were minimal or first degree. Cause of low incidence of hiatus hernia in Korean is not clear although anethnical difference has been implicated. In this paper we present a case of 3rd degree hiatus hernia observed in a 76 year-old Korean woman. Roentgenological features of this condition are also reviewed.