The bigeye rockling (Gaidropsarus macrophthalmus) is a species of fish in the family Lotidae.
The bigeye rockling's maximum length is . It is silvery-pink in colour, its back mottled with medium brown, and the eyes more than half the length of its snout. The first dorsal spine is followed by fleshy filaments. There is one barbel on the lower jaw and two on the snout. The upper jaw has long pointed teeth.
Bigeye rockling live in the northeastern Atlantic Ocean. It is demersal, living at depths of .
Bigeye rockling feed on crustaceans. It breeds in early spring.