• "1-2-3" (song), by Len Barry
• "1-2-3 (Gloria Estefan song)", a song by Miami Sound Machine from their album Let It Loose
• "1. 2. 3. ...", a song by Bela B. and Charlotte Roche
• 1-2-3 (album), by The Howling Hex
• 1-2-3 (band) a 1960s rock band also known as Clouds
• 1-2-3 (fuel station), a chain of fuel stations in Norway
• One, Two, Three, a film by Billy Wilder
• One-two-threes, in animation, the number of exposures for a given drawing
• Lotus 1-2-3, a computer spreadsheet program
• Jell-o 1-2-3, a dessert

See also

• 123 (number)
• Raz, Dwa, Trzy, Polish music band
• Raz, dwa, trzy (newspaper), Polish sports weekly