Miridiba saigonensis is a species of beetle of the family Scarabaeidae. It is found in Vietnam.
Adults reach a length of about 22âÂÂ25 mm. The pronotal surface has strong and deep punctures, each one with a tiny, hardly visible bulge. The scutellum is without punctures at the middle line. The elytral surface has regularly distributed punctures, each one with a tiny, hardly visible bulge.