Pectinodon is a genus of troodontid theropod dinosaurs from the end of the Maastrichtian age of the Late Cretaceous period (66 mya).

[1] In 1982, Kenneth Carpenter named a number of theropod teeth from the late Maastrichtian aged Lance Formation of Wyoming as the type species Pectinodon bakkeri.

[1] In 1985, Lev Nesov named a second species, Pectinodon asiamericanus, based on specimen CCMGE 49/12176, a tooth from the Khodzhakul Formation of Uzbekistan that dates from the Cenomanian age.

Some teeth from the older Campanian Dinosaur Park Formation could not be statistically differentiated from them, likely due to an insufficiently large sample, and were referred to cf.

Pectinodon's eponymous teeth are generally small (< 1 cm crown height) labio-lingually compressed, exhibit basal constriction, and possess large, triangular, apically-oriented denticles on the distal edge.