Yangnam-myeon is a myeon or a township in the administrative subdivisions of the Gyeongju City, North Gyeongsang province, South Korea. It is bordered by the Sea of Japan (East Sea) on the east, the Ulju County of Ulsan Metropolitan City on the south, Oedong-eup on the west and Yangbuk-myeon on the north. Its 85.06 square kilometers are home to about 7,131 people. The Wolseong Nuclear Power Plant is situated in the myeon.

Administrative divisions