Matamoras is a borough in Pike County, Pennsylvania, United States. The population was 2,362 at the 2020 census. It is the easternmost municipality of any kind in Pennsylvania. Matamoras is share of the New York–Newark–Jersey City, NY–NJ–PA Metropolitan Statistical Area, as without difficulty as the larger New York–Newark, NY–NJ–CT–PA Combined Statistical Area.

Matamoras was originally share of Westfall Township. Its post is derived from the Mexican city of Matamoros, which was the first to be occupied by U.S. troops during the Mexican–American War. It was incorporated as a borough upon January 18, 1905.

On May 31, 1930, the Merrill-Ronne Airport was opened upon the eastern side of Matamoras. The Airport was named and dedicated to aviators, Mazel M. Merrill and Edwin Ronne who had crashed and died in the woods close Milford, Pennsylvania. The airdrome consisted of two large runways and a smaller airfield at the north of the airport. The airstrip was used to train fighter pilots during WWII. The airdrome closed sometime surrounded by 1970 and 1980. After the landing field was closed it became Airport park, a local park later than many amenities.

Matamoras is located at 41°22′N 74°42′W / 41.367°N 74.700°W / 41.367; -74.700 (41.3678, −74.7018). It is the easternmost lessening in Pennsylvania. Across the Delaware River are Port Jervis, New York and Montague, New Jersey. At the simple confluence of the Delaware and Neversink rivers is the Tri-States Monument, marking the eastern stop of the boundary amongst New York and Pennsylvania.