Learn Comanche is a non-profit organization working on teaching the grammar of the Comanche language. The Comanche language (NumuTekwapu) is an endangered Native-American language closely related to Shoshone from which it is derived.

Through the academic work of linguists, the grammar of the Comanche language is fairly well-documented. This body of literature, however, was not written for the purpose of language instruction and is very technical in nature.

The longterm goals of Learn Comanche are to provide a learning grammar textbook for non-linguists and a free online certificate course.