Utagawa Yoshitsuya (歌川 芳艶, February 22, 1822 – August 2, 1866), also known as Kōko Yoshitsuya (甲胡 芳艶) and as Ichieisai Yoshitsuya (一英斎 芳艶), was a Japanese designer of ukiyo-e woodblock prints.
Yoshitsuya was a student of Utagawa Kuniyoshi and, like his teacher, is best known for his woodblock prints of warriors. Yoshitsuya also produced many advertisements and designs for tattoos.
Yoshitsuya's students include Utagawa Kazutoyo (active c. 1862–70), Utagawa Yoshitoyo II (active c. 1862–77) and Yoshitsuya II (active c. 1870s).