People who died at the age of 40

• Gus Grissom
• Edgar Allan Poe
• Thomas West, 3rd Baron De La Warr
• Shinya Hashimoto
• Falco (musician)
• Pat McGeown
• Ray Combs
• Stiv Bators
• Pete Maravich
• Kalervo Palsa
• Beatrice Tinsley
• Jean Seberg
• Terry Sawchuk
• John Coltrane
• Jim Reeves
• Robert Capa
• Edgard Potier
• Bert Hinkler
• Tommy Treichel
• Jose Eustasio Rivera