Azusa may refer to:

Relating to California From a Native American language, likely Tongva Asuksagna: Azusa, California, a city in the United States Azusa Pacific University, a Christian-based institution in Azusa, California Azusa Street Revival, a Christian movement that began in Los Angeles

Other uses Azusa (given name) Azusa (train), a limited express train service in Japan Azusa (band), a metal band Azusa, the Japanese cherry birch (Betula grossa) Azusa Yumi, a bow made from the wood of the Japanese cherry birch AZUSA, a radar interferometer