| Tapjeong-dong | |
| Translit Lang1: | Korean |
| Translit Lang1 Type: | Hangul |
| Translit Lang1 Info: | 탑정동 |
| Translit Lang1 Type1: | Hanja |
| Translit Lang1 Info1: | 塔正洞 |
| Translit Lang1 Info2: | Tapjeong-dong |
| Translit Lang1 Info3: | T'apchong-tong |
| Translit Lang2 Type: | Hangul |
| Translit Lang2 Type1: | Hanja |
| Subdivision Type: | Country |
| Subdivision Name: | South Korea |
| Subdivision Type1: | Region |
| Subdivision Name1: | Gyeongju |
| Seat Type: | Capital |
| Parts Style: | para |
| Government Type: | Gyeongju City |
| Leader Title: | Mayor |
| Area Total Km2: | 19.68 |
| Population Footnotes: | [1] |
| Population Total: | 5630 |
| Population As Of: | 2008 |
| Population Density Km2: | auto |
| Blank Name Sec1: | Dialect |
| Blank Info Sec1: | Gyeongsang dialect |
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.