- Mar 4 Wesley Bolin, former Governor of the U.S. State of Arizona (b. 1909)
- Mar 7 Steve Bilko, American baseball player, dies at 49
- Mar 11 Claude François, French singer (b. 1939)
- Mar 12 John Cazale, actor (Dog Day Afternoon, The Deer Hunter), dies at 41
- Mar 12 Tolchard Evans, composer/conductor, dies
- Mar 12 Theresa Weld Blanchard, American figure skating champion (1914, 1920-24), dies at 84
- Mar 13 David McKinley Williams, composer, dies at 91
- Mar 13 Ghulam Mustafa Guard, cricketer (3 wkts in 2 Tests for India), dies
- Mar 13 Ghulam Guard, Indian cricketer (lefty pace bowler in 2 Tests for India 1959), dies at 52
- Mar 17 George Dickinson, cricketer (8 wickets in 3 Tests for NZ), dies
- Mar 18 Faith Baldwin, American author (They Who Love), dies at 84
- Mar 18 Peggy Wood, actress (One Life to Live, Mama), dies at 86
- Mar 19 Gaston Julia, French mathematician (b. 1893)
- Mar 22 Karl Wallenda, falls to death walking high-wire in PR at 73
- Mar 23 Bill Kenny, American singer, dies at 63
- Mar 24 Leigh Brackett, American sci-fi author (Ginger Star), dies at 62
- Mar 25 Jack Hulbert, British actor (Into the Blue, Bulldog Jack), dies at 85
- Mar 27 Wilfred Pickles, British actor (Billy Liar, Gay Dog), dies at 73
- Mar 28 Dino Ciani, Italian pianist (d. 1941)
- Mar 29 Jayasinghrao Mansinghrao Ghorpade, Indian cricketer (8 Tests for India 1952-59 with little impact), dies at 47
- Mar 30 George Paine, lefty cricket spinner (for England in WI 1935), dies
- Mar 30 Harold Gimblett, cricketer (Batted in 3 Tests for England), suicide
- Mar 30 Larry Young [Khalid Yasin], American jazz musician (Unity), dies at 37 in unclear circumstances
- Mar 31 Astrid Allwyn, actress (Love Affair, Girl for Calgary), dies at 68
- Mar 31 Charles Herbert Best, American-Canadian physiologist/co-discoverer (Insulin), dies at 79