Deokjong of Goryeo (9 June 1016 – 31 October 1034), personal name Wang Hŭm, was the 9th king of the Goryeo dynasty of Korea. The son of King Hyeonjong, he was confirmed as Crown Prince in 1022. During his reign, the compilation of national histories that was started during King Hyeonjong's reign was completed, and under the advice of General Kang Kam-ch'an the construction of the second Cheolli Jangseong began.^[1][2]

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After ascending the throne in 1031, Deokjong requested that the Liao dynasty return their Goryeo prisoners and pull back from the Yalu River. After this request was refused, he turned to fortifying the northern frontier.

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• Father: Hyeonjong of Goryeo
  • Grandfather: Anjong of Goryeo
  • Grandmother: Queen Heonjeong
• Mother: Queen Wonseong
  • Grandfather: Kim Ŭn-bu
  • Grandmother: Grand Lady of Ansan County of the Gyeongwon Yi clan (안산군대부인 이씨)
• Consorts and their respective issue(s):

1. Queen Gyeongseong of the Gyeongju Kim clan; half younger sister – No issue.
2. Worthy Consort Gyeongmok of the Kaesong Wang clan
   1. Princess Sanghoe (상회공주); died young.
3. Queen Hyosa of the Ansan Kim clan; half younger sister – No issue.
4. Lady, of the Buyeo Yi clan (부인 부여 이씨) – No issue.
5. Lady, of the Chungju Yu clan (부인 충주 유씨) – No issue.
6. Unknown
   1. Princess Wang (공주 왕씨)

• List of Korean monarchs#Goryeo
• List of Goryeo people