Khinjaria (meaning "dagger") is an extinct genus of plioplatecarpine mosasaurid from the Late Cretaceous Ouled Abdoun Basin of Morocco.

The Khinjaria holotype specimen, MHNM.KHG.521, was discovered in sediments of the Oulad Abdoun Basin (Lower Couche III, Sidi Chennane locality) in Khouribga Province, Morocco.

[1] In 2024, Longrich et al. described Khinjaria acuta as a new genus and species of plioplatecarpine mosasaur based on these fossil remains.

[1] Undescribed teeth potentially referable to Khinjaria have also been reported from the younger Upper Couche III in the Sidi Chennane locality.

[1] In their phylogenetic analyses, Longrich et al. (2024) recovered Khinjaria within a clade of plioplatecarpine mosasaurids, as the sister taxon to Goronyosaurus.