Doha Kang (Hangul: 강도하; born 1969) is a manhwa artist of South Korea. Kang wrote The Great Catsby and Romance Killer. Before 2005, when he presented The Great Catsby on Daum, one of the major Internet portals of South Korea, Kang signed his work with his birth name, Kang Seong-su. He is also the spouse of a famous manwha artist, Won Soo-yeon (원수연), author of Full House, which was adapted into the television drama of the same name. Won is eight years older than Kang and they have two children.

In 1987 Kang won the Myeongrang Manhwa Artist Award for his work Father and Son (아버지와 아들) in the 4th New Manhwa Artist Award that was held by monthly magazine Bomulseom (Treasure Island)'s publishing company. At that time he still was a junior high school student. Although he began working as a manhwa artist immediately after graduation, he decided to become one when in the junior year of middle school, in 1983. For that reason, the last digits of his mobile phone number are 1983.