Early-Joseon official and calligrapher; middle ancestor of the Gongdae-gong branch
| Life | 1390 ~ 1475 |
| Era | 조선 |
| Clan | 진주 정씨 |
Jeong Cheok was an early-Joseon official who is said to have served as governor of Chungcheong and in the Privy Council under Sejong and Sejo, and who was skilled in calligraphy and took part in map-making. The Gongdae-gong branch honors him as middle ancestor. Details of his career vary by source.