Homalonotus is an extinct genus of trilobites in the order Phacopida.

It contains several species, including H. armatus and H. roemeri.

It is closely related to other trilobites such as Arduennella and Dipleura.

Fossils of Homalonotus have been found in:[3] France, and the United Kingdom Canada (Nova Scotia), Poland, Sweden (Gotland, Västergötland), the United Kingdom, and the United States (New York) Algeria, Bolivia, Brazil, Uruguay, Colombia (Floresta Formation, Altiplano Cundiboyacense), France, Morocco, New Zealand, Poland, and Ukraine

This Phacopida-related article is a stub.