Titanogomphdon is an extinct genus of diademodontid cynodont (represented by the type species Titanogomphodon crassus) from the Middle Triassic of Namibia. It is known from a single partial skull that was described in 1973 from the Omingonde Formation. At about 40 centimetres (16 in), the skull of Titanogomphodon was significantly larger than that of its closest relative, Diademodon (hundreds of skulls of Diademodon are known and none exceed 29 centimetres (11 in) in length). Its teeth are similar to those of another group of cynodonts called Traversodontidae, but the similarities are likely the result of convergent evolution. Aside from its larger size, Titanogomphodon differs from Diademodon in having a bony projection on the postorbital bar behind the eye socket.