Microserica sibuyana is a species of beetle of the family Scarabaeidae. It is found in the Philippines (Sibuyan).
Adults reach a length of about 5 mm. They are dull and reddish, with the pronotum sometimes green, or blackish-green everywhere. The head is sparsely punctate and the antennae are reddish-yellow. The pronotum has ciliated sides and is subtly punctate. The elytra areseriate-punctate, with interstices slightly convex and covered with punctures.