- May 1 Gene Sheldon, American actor (Zorro - "Bernardo"), mime artist, and banjo player, dies of a heart attack at 74
- May 1 William Primrose, Scottish violist (Method for Violin & Viola), dies at 77
- May 2 Helmut Dantine, Austrian-American actor (Shadow of the Cloak), dies of a heart attack at 64
- May 2 Hugh Marlowe [Hipple], American actor (All About Eve, Ellery Queen), dies from a heart attack at 71
- May 5 Cal Tjader, American Latin jazz vibraphonist, dies of a heart attack at 56
- May 6 Sam Baker, American silent film actor (The Missing Link; The Lost City; The Sea Beast), dies at 75
- May 7 Alfred Adam, French character actor, dies at 72
- May 8 Al Leader, Canadian-American Hockey Hall of Fame player, referee and administrator (Western Hockey League), dies at 78
- May 8 Gilles Villeneuve, Canadian auto racer (World F1 runner-up 1979; Ferrari), dies in a practice accident prior to Belgian GP, at 32
- May 8 Neil Bogart, American record executive (b. 1943)
- May 9 Ab Visser, Dutch poet and writer (Man Without a Head), dies at 69
- May 10 Jean Picart le Doux, French artist and tapestry designer, dies at 80
- May 10 Peter Weiss, German author and playwright (Marat/Sade), dies at 65
- May 11 Leigh Snowden [Martha Lee Estes], American actress (All That Heaven Allows), dies of cancer at 51
- May 11 Piet van Egmond, Dutch organist and conductor (Netherlands Chamber Orchestra), dies at 70
- May 12 Humphrey Searle, British composer and musicologist (Twentieth Century Counterpoint; The Music of Franz Liszt), dies at 66
- May 13 Gara Garayev [Kara Karayev], Soviet-Azerbaijani composer (Seven Beauties), dies at 64
- May 13 Renzo Rossellini, Italian composer, dies at 74
- May 14 Hugh Beaumont, American actor (The Mole People, Leave it to Beaver), dies from a heart attack at 73
- May 14 Mariel-Henri Jaspar, Belgian minister who unsuccessfully attempted to establish a Belgian government in London during World War II, dies at 80
- May 25 Larry J. Blake, American actor (Earth vs the Flying Saucers), dies at 68
- May 26 Nanny Larsén-Todsen, Swedish opera singer, dies at 97
- May 28 Lt Col 'H'. Jones VC, Commanding Officer, 2nd Battalion, Parachute Regiment (British Army) (Falklands War) (b. 1940)
- May 29 Romy Schneider, actress (Cardinal), dies of cardiac arrest at 43