- Mar 3 Stanislav Shatalin, Russian economist (500 Days), dies
- Mar 3 Finn Høffding, Danish composer (Karlsvognen), dies at 97
- Mar 4 Robert H. Dicke, American physicist (b. 1916)
- Mar 4 Carey Loftin, American actor (Duel, The French Connection), dies at 83
- Mar 5 Samm Sinclair Baker, American diet author (b. 1909)
- Mar 6 Anthony Hopkins, English clinical neurologist and Director of the Research Unit at the Royal College of Physicians, dies at 59
- Mar 6 Cheddi Jagan, Guyanese politician, 'Father of the Nation' Guyanese Premier (1953, 1957-64) dies at 78
- Mar 6 Michael Manley, Jamaican PM (PNP, 1972-80, 89-92), dies
- Mar 6 Ed Furgol, American golfer (US Open 1954), dies at 79
- Mar 7 Edward Mills Purcell, American physicist (Nobel 1952), dies at 84
- Mar 7 E. H. Bronner, German-American soap magnate (b. 1908)
- Mar 7 Geraldine Clinton Little, Irish poet (A Little Bouquet), dies at 73
- Mar 8 Alexander Salkind, producer (Superman), dies at 75
- Mar 8 Raymond Edwards, American doo-wop bass (The Silhouettes - "Get A Job"), dies of cancer at 72
- Mar 9 Terry Nation, writer (Dr Who, Blake 7) at 66
- Mar 9 The Notorious B.I.G. [Christopher Wallace], American rapper (Life After Death), shot dead in a drive-by shooting in Los Angeles at 24
- Mar 10 (Dolores) LaVern Baker [Evans], American pop and R&B vocalist ("Jim Dandy"; "I Cried A Tear"), dies of cardiovascular disease at 67
- Mar 11 Lars Ahlin, Swedish writer (My Death is My Own), dies at 81
- Mar 11 Hugo Weisgall, American composer (4 Impressions), dies at 84
- Mar 13 Leo O'Brien, Australian cricket batsman (5 Tests; Victoria), dies at 89
- Mar 14 Fred Zinnemann Austrian-American director (From Here to Eternity, Julia), dies of heart attack at 89
- Mar 14 John Curtis Jr, American executive (Luby's Cafe), commits suicide at 49
- Mar 14 Jurek Becker, Polish-born German writer (Jacob the Liar), dies at 59
- Mar 14 Lucy Kroll, American talent agent, dies at 87
- Mar 15 Gail Davis, American actress (Annie Oakley), dies at 71
- Mar 15 Victor Vasarely, Hungarian-French painter and author (Op Art), dies at 90
- Mar 17 Jermaine Stewart, American R&B singer (We Don't Have to Take Our Clothes Off) dies of cancer at 37
- Mar 19 Willem De Kooning, Dutch artist (Abstract), dies of Alzheimer at 92
- Mar 20 Carlo Fassi, figure skating coach (Fleming, Hamill), dies at 67
- Mar 20 Grace Hefner, mother of Hugh Hefner (Playboy), dies at 101
- Mar 20 Tony Zale, American boxer (World Middleweight Champion 1940-47, 48), dies at 83
- Mar 21 Wilbert Awdry, English Anglican cleric and children's writer (Thomas the Tank Engine), dies at 85
- Mar 24 Martin Caidin, American aviation writer, dies at 69
- Mar 24 Harold Melvin, American soul and R&B singer (The Blue Notes - "If You Don't Know Me By Now"), dies at 57
- Mar 25 Roberto Sanchez Vilella, governor of Puerto Rico in (1965-69), dies
- Mar 26 Marshall Applewhite, American cult leader (Heaven's Gate), dies leading a mass suicide at 65
- Mar 29 Eddie Ryder, American actor (General Hospital, Up Yours), dies at 74
- Mar 29 Ellen Pollock, British actress (Wicked Lady, Fake), dies at 94
- Mar 30 Jon Stone, American director and co-creator of Sesame Street, dies at 64
- Mar 31 Edwin Alberian, TV celebrity (Clarabell), dies at 76
- Mar 31 Laxmishankar Pathak, food retailer, dies at 62
- Mar 31 Arthur Cunningham, American composer, dies at 68