Izumiya (泉谷) is a Japanese surname. It may refer to:
Naoki Izumiya (born 1948), Japanese businessman Seizo Izumiya (born 1961), Japanese martial artist, karate master, and coach Shigeru Izumiya (born 1948), Japanese poet, folk singer, actor, and tarento Shunsuke Izumiya (born 2000), Japanese hurdler
See also Izumiya, a Japanese supermarket chain