Boreogomphodon is an extinct genus of traversodontid cynodonts from the Late Triassic of the eastern United States.

[1] Boreogomphodon was distinguished from other traversodontids like the African Luangwa and the South American Traversodon on the basis of its postcanine teeth.

There is a single cusp on the side of the upper postcanine facing the lip, while a flat surface extends outward from it.

[2] Boreogomphodon has several primitive features, including a depression in the upper jaw called the paracanine fossa in front of the canine tooth.

Below is a cladogram modified from Sues and Hopson (2010) showing the phylogenetic relations of Boreogomphodon:[4] Diademodontidae Trirachodontidae Andescynodon Pascualgnathus "Scalenodon" hirschsoni Boreogomphodon Arctotraversodon Nanogomphodon Scalenodon Luangwa Traversodon Dadadon Massetognathus Santacruzodon Gomphodontosuchus Menadon Exaeretodon Scalenodontoides