| Named By: | M. Sadiq Malkani in 2006 |
| Time Period: | Late Cretaceous, Maastrichtian |
| Location: | Pakistan, Balochistan - Pab Formation |
| Size: | Uncertain due to lack of remains |
| Diet: | Herbivore |
| Fossil(s): | Described from caudal (tail) vertebrae. Further vertebrae, partial hind limbs and partial skull remains have been attributed to the genus |
| Classification: | | Chordata | Reptilia | Dinosauria | Saurischia | Sauropodomorpha | Sauropoda | Titanosauria | Balochisauridae | |
Marisaurus (meaning "Mari lizard", for the Mari tribe of Pakistan) is a genus of titanosaurian sauropod from the Late Cretaceous of Balochistan, western Pakistan. The type species is M. jeffi, described by M. Sadiq Malkani in 2006, and it is based on tail vertebrae, found in the Maastrichtian-age Vitakri Member of the Pab Formation. Much additional material, including a partial skull, many vertebrae, and a few hindlimb bones, was referred to this genus.