Pachyserica janbezdeki is a species of beetle of the family Scarabaeidae. It is found in Laos.
Adults reach a length of about 9-9.8 mm. They have a reddish-brown, elongate-oval body, with dark spots and a partially greenish sheen. The head is dark and the antennae are yellowish-brown. The surface is entirely dull tomentose, except for the shiny labroclypeus. The upper surface has numerous white scale-like hairs forming almost uniform transverse stripe patterns on the intervals. The pronotum and elytra have erect, long, thin setae.
The species is named after its collector, Jan Bezdek.