Chulas Fronteras is a 1976 American documentary film^[1] which tells the story of the norteño or conjunto music which is played on both sides of the Mexico–Texas border.^[2] It was directed by Les Blank.^[3] A CD soundtrack of the music played in the film is also available, under the same title.^[4]

In 1993, this film was selected for preservation in the United States National Film Registry by the Library of Congress as being "culturally, historically, or aesthetically significant".^[5][6]