Moriarty is a city in Torrance County, New Mexico, United States. The population was 1,765 at the 2000 census. It is part of the Albuquerque Metropolitan Statistical Area.
Moriarty is located at 35°00′00″N 106°2′48″W / 35°N 106.04667°W / 35; -106.04667 (34.999815, -106.046667).
According to the United States Census Bureau, the city has a total area of 4.8 square miles (12.4 km²), all of it land.