"Cuando" (English: "When") is a song written and performed by Guatemalan singer-songwriter Ricardo Arjona for his eighth studio album, Galería Caribe (2000).

[2][3] It became his second number-one song on both the Billboard Hot Latin Songs and Latin Pop Airplay charts in the United States.

The song was inspired by an Internet chat Arjona had with a woman.

Michael Paloetta of Billboard magazine called it "dreamy".

[4] The music video for the song was filmed in Barcelona, Spain and directed by Pedro Aznar.