舌鳎科（学名Cynoglossidae）是辐鳍鱼纲鲽亚目的其中一科。

舌鳎科下分3个属，如下：

Tonguefishes are flatfishes in the family Cynoglossidae. They are distinguished by the presence of a long hook on the snout overhanging the mouth, and the absence of pectoral fins. Their eyes are both on the left side of their bodies, which also lack a pelvic fin. This family has three genera with a total of more than 140 species. The largest reaches a length of 66 cm (26 in), though most species only reach half that size or less.