Altitude is the height of an object over a datum.

It may also refer to:

Science and mathematics Altitude (astronomy), one of the angular coordinates of the horizontal coordinate system Altitude (triangle), in geometry, a line passing through one vertex of a triangle and perpendicular to the opposite side

Music Altitude (ALT album), the collaborative album released by Andy White, Tim Finn and Liam O'Moanlai under the name ALT Altitude (Autumn album), the album by Dutch rockband Autumn Altitude (Yellow Second album), the album by pop punk band Yellow Second Altitude (Joe Morris album), the album by jazz guitarist Joe Morris

Other uses Altitude (film), a 2010 Canadian horror film directed by Kaare Andrews Altitude, a 2017 dark comedy film starring Denise Richards Altitude (computer game), a 2D aerial combat game released in 2009 Altitude (G.I. Joe), a fictional character in the G.I. Joe universe Altitude Sports and Entertainment, a regional sports network in Colorado

See also Altitude Film Entertainment, a British film production and distribution company Major Altitude, a fictional character in the G.I. Joe universe