- Born: 1533
- Died: 1614
- Titles: Saemon no kami, Nakatsukasa
- Distinctions: Hôjô retainer, lord of Shimosa province
- Japanese: 結城晴朝 (Yuuki Harutomo)
Harutomo was the son of Oyama Takatomo and was adopted by his uncle Yûki Masakatsu. He was compelled to accept the authority of the Hôjô but severed his ties in 1590 when Toyotomi Hideyoshi came to besiege the Hôjô's Odawara Castle. That same year he adopted Hideyasu, the second son of Tokugawa Ieyasu, whom he later accompanied to Echizen after 1600.