Trimeroceratidae is a family of molluscs in the order Oncocerida.

These molluscs were fast-moving nektobenthic carnivores.

They lived in the Silurian period.

Species have been found in Silurian-era strata of Canada (Québec), China, Czechia, Italy, Russia, Sweden, and the United States (Indiana, Wisconsin).

This article related to a Silurian animal is a stub.