Kim Yongchun (Korean: 김용춘; Hanja: 金龍春, 578–647) was member of Silla Royal Family, Hwarang and Gukseon (國仙) from 596 to 603.
He was the son of King Jinji and brother-in-law of Princess Cheonmyeong through his brother, Kim Yongsu.
He went on to marry Princess Cheonmyeong later on, in order to fulfill his brother's dying wish.
Kim Yonsu was aware of Princess Cheonmyeong's feelings for his brother and asked him to marry her instead.
But Kim Yongchun refused out of respect for his brother who might end up a laughing-stock.