Azul means "blue" in Portuguese and Spanish and may refer to:
- Azul, a song on the album Hu Hu Hu by Natalia Lafourcade.
- Azul..., a poetry collection by Rubén Darío
- Azul Azul, a Bolivian pop-dance music group
- Azul, Buenos Aires Province, a town in Argentina
- Operation Azul, the Argentine codename for the military landings that started the Falklands War
- Blue Division or División Azul, a unit of Spanish volunteers that served in the German Army on the Eastern Front of the Second World War
- Azul (Cristian Castro album), 2001
- Azul (song), a song performed by Mexican singer Cristian Castro in 2001.
- Azul (Los Piojos album), 1998
- Azul (telenovela), a telenovela starring Kate del Castillo and Patricia Reyes Spíndola
- Azul Systems, a computer manufacturer of appliances for executing Java-based applications
- Azul Brazilian Airlines
- Air Azul, an American airline
- Sin Cara Azul
- Azul for cello, obbligato group and orchestra, a work by the composer Osvaldo Golijov, premiere 2006.