Fulengia is a dubious genus of basal sauropodomorph dinosaur from the Early Jurassic Lufeng Formation of China.

The holotype of Fulengia (CUP 2037), a mineralised lump containing a small skull, just under 4 centimetres (1.6 in) long, a single vertebra, and a jumble of unidentifiable bones, was originally catalogued as a juvenile specimen of Yunnanosaurus huangi by Simmons in 1965,[3] who reckoned they were "coprolitic in origin", but there is no way to accurately prove this.

[3] Twelve years later Carroll and Galton reclassified it as a lizard of Late Triassic age and named the species Fulengia youngi.

[5] In 1989, Evans and Milner classified Fulengia as an Early Jurassic sauropodomorph.

[5] It was around 6.2 metres (20 ft) long and around 600 kilograms (1,300 lb) in weight when fully grown.