Javier Álvarez Fuentes (born May 8, 1956, Mexico City) is a Mexican composer who is known for creating works that combine a variety of international musical styles and traditions that often utilize unusual instruments and new music technologies. According to composer John Adams, "The music of Javier Alvarez reveals influences of popular cultures that go beyond the borders of our own time and place." Álvarez is one of the best-known Mexican composers of his generation and many of the works in his prolific oeuvre combine music technology with diverse instruments and influences from around the world.