| Jurisdiction: | Diocese |
| Uijeongbu | |
| Latin: | Dioecesis Uiiongbuensis |
| Local: | 의정부교구 |
| Country: | South Korea |
| Territory: | Northern part of Gyeonggi |
| Province: | Seoul |
| Metropolitan: | Seoul |
| Area Km2: | 2,594 |
| Population: | 3,141,806 |
| Population As Of: | 2017 |
| Catholics: | 315,620 |
| Catholics Percent: | 10.3 |
| Parishes: | 81 |
| Denomination: | Catholic |
| Sui Iuris Church: | Latin Church |
| Rite: | Roman Rite |
| Established: | 24 June 2004 |
| Cathedral: | Cathedral of the Sacred Heart of Mary in Uijeongbu |
| Bishop: | Benedictus Son Hee-song (손희송 베네딕토) |
| Metro Archbishop: | Andrew Yeom Soo-jung |
| Emeritus Bishops: | Joseph Lee Han-taek, S.J. |
| Map: | Diocese of Uijeongbu.svg |
The Diocese of Uijeongbu (Latin: Dioecesis Uijongbunensis), also romanized Uijongbu, is a particular church of the Latin Church of the Roman Catholic Church in South Korea. It is the newest diocese in South Korea, erected from the Archdiocese of Seoul on June 24, 2004 by the orders of Pope John Paul II, and a suffragan diocese of the same. Its mother church is the Cathedral of the Sacred Heart of Mary in Uijeongbu, Gyeonggi-do.