Sinamiidae is an extinct family of ray-finned fish.

[2] They are halecomorph fishes endemic to Early Cretaceous freshwater environments in East and Southeast Asia.

Along with Amiidae, it is one of two families that makes up the superfamily Amioidea.

[1] The two are distinguished by the shape of their scales.

[3] Some authors treat them as a subfamily, the Sinamiinae, within the Amiidae as the closest relatives of the modern subfamily Amiinae.