Gynaecoserica barclayi is a species of beetle of the family Scarabaeidae. It is found in Myanmar.
Adults reach a length of about 4.8 mm. They have an oblong-oval body. The surface is yellowish brown, the elytra with small irregular brown spots. The dorsal surface is shiny and sparsely setose.
The species is named in honour of Max Barclay (BNMH).