Munmudaewang-myeon is a myeon or a township in the administrative subdivisions of the Gyeongju City, North Gyeongsang province, South Korea. It is bordered by Gampo-eup and Sea of Japan on the east, Yangnam-myeon on the south, Bulguk-dong, Bodeok-dong and Oedong-eup on the west and Ocheon-eup and Janggi-myeon of the Pohang city on the north. Its 120.06 square kilometers are home to about 4,558 people. This population is served by one joint elementary-middle school.