The ocellated lizard or jewelled lizard (Timon lepidus) is a species of lizard in the family Lacertidae (wall lizards). The species is endemic to southwestern Europe.
Timon lepidus is one of the largest members of its family. The adult is 30 to 60 cm (0.98 to 1.97 ft) in total length (including tail) and may reach up to 90 cm (3.0 ft), weighing more than 0.5 kg (1.1 lb). About two-thirds of its length is tail. Newly hatched young are 4 to 5 cm (1.5 to 2 in) long, excluding tail.
This is a robust lizard with a serrated collar. The male has a characteristic broad head. It has thick, strong legs, with long, curved claws. The dorsal background colour is usually green, but sometimes grey or brownish, especially on the head and tail. This is overlaid with black stippling that may form a bold pattern of interconnected rosettes. The underside is yellowish or greenish with both the male and female sporting bright blue spots along the flanks, though the male is typically brighter in colour than the female. Young are green, grey, or brown, with yellowish or white, often black-edged, spots all over.