Matamoras is an unincorporated community in the northeast portion of Harrison Township, Blackford County, in the U.S. state of Indiana.

[1] Matamoras is Blackford County's oldest community, although it was not the first to be platted.

[3] Matamoras is located on the Salamonie River, less than one mile east of Montpelier.

It was likely named after Matamoros, Mexico, a battleground in the Mexican–American War.

This Blackford County, Indiana location article is a stub.