Renkei-ji (蓮馨寺) is a Buddhist temple of the Jōdo-shū sect in Kawagoe City, Saitama Prefecture.

Renkei-ji was constructed in 1549 by Renkei, after the Night Battle of Kawagoe (1546).

In the Edo Period (1602), Renkei-ji joined one of the Kantō Jūhachi Danrin, which was a nationally certified Buddhism University.

On the 8th of every month, a temple fair is held with storytelling and other events.

It is said that if you touch a sick area of your body to the same spot on Obinzuru-sama, your illnesses will be healed.