Tapjeong-dong was an administrative dong or a neighbourhood in the administrative subdivisions of the Gyeongju City, North Gyeongsang province, South Korea until January 2009. It consisted of four legal dong including Tap-dong, Sajeong-dong, Yul-dong, and Bae-dong.
It was bordered by Jungang-dong and Hwangnam-dong on the east, Seondo-dong and Geoncheon-eup on the west, Naenam-myeon on the south and Seonggeon-dong on the north. Its 19.68 square kilometers were home to about 5,630 people. The Poseokjeong and Hongnyunsa temple sites were situated in the district.