Heonjong (Korean: 헌종; Hanja: 憲宗; 8 September 1827 – 25 July 1849), personal name Yi Hwan (이환; 李烉), was the 24th monarch of the Joseon dynasty of Korea.

His father was Crown Prince Hyomyeong, who died at the age of 20 before becoming king, and his mother was Queen Sinjeong of the Pungyang Jo clan.

[1] The young Heonjong ascended to the throne in 1834 at the age of 7 after his grandfather, King Sunjo, died.

In 1840, the control over the kingdom was then handed down to the Andong Kim clan, the family of his grandmother Queen Sunwon, following the anti-Catholic Gihae persecution of 1839.

As was customary with the Annals of the Joseon Dynasty, the chronicle of Heonjong's reign was compiled after his death, in 1851.