Hiroyuki Utatane (うたたね ひろゆき, Utatane Hiroyuki, born 15 June 1966 in Nagaoka, Niigata Prefecture, Japan) is a Japanese manga artist and anime director. His wife is manga artist Ryō Ramiya.
Utatane began his career with adult works such as Countdown. His more recent works have been seinen works such as Seraphic Feather and Heaven's Prison, though he continues to release some adult works as well.Cool Devices (クールディバイシス, Kūru Dibaishisu) (1995) Director, creator
Temptation: Erotic Eccentric (誘惑（エロティックエキセントリック）, Yūwaku (Erotikku Ekisentorikku)) (1993)
Seraphic Feather (セラフィック・フェザー, Serafikku Fezā) (1994)
Lythtis (リスティス, Risutisu) (1995)
Countdown: Sex Bombs (2000)
Tengoku: Heaven's Prison (天獄 ―HEAVEN'S PRISON―) (2002)