Norteño or Norteña, also música norteña, is a subgenre of regional Mexican music. The music is most often based on duple and triple metre and its lyrics often deal with socially relevant topics, although there are also many norteño love songs. The accordion and the bajo sexto are traditional norteño's most characteristic instruments. Norteña music developed in the late 19th century, as a mixture between local Mexican music and Austrian-Czech-origin folk music.

Regional Mexican music refers collectively to the regional subgenres of the country music of Mexico and its derivatives from the Southwestern United States. Each subgenre is representative of a certain region and its popularity also varies by regions. Subgenres include banda, duranguense, grupero, mariachi, New Mexico music, Norteño, Sierreño, Tejano, and Tierra Caliente. It is among the most popular radio formats targeting Mexican Americans in the United States.