Kawamata Tsunemasa (川又 常正, birth and death dates unknown) was a Japanese ukiyo-e artist of the Kawamata school of art, active from the Genbun (1736–41) to perhaps the Meiwa (1764–72) eras.
Like many early ukiyo-e artists, Tsunemasa and the Kawamata school specialized in painting (nikuhitsu-ga) rather than designing woodblock prints.
He worked primarily on bijin-ga portraits of female beauties.
His later painters appear to bear the influence of Suzuki Harunobu in the style in which he depicts women.
He produced many mitate-e works that allude to classical themes.