- Mar 4 Amos Bronson Alcott, American reformer, philosopher and poet (Table Talk), dies at 88
Louisa May Alcott (1832-1888)
Mar 6 American author (Little Women), dies of a stroke at 55
Wilhelm I (1797-1888)
Mar 9 King of Prussia (1861-88) and the 1st German Emperor (1871-88), dies at 90
- Mar 10 Ciro Pinsuti, Italian pianist and composer, dies at 57
- Mar 12 Henry Bergh, American social reformer who founded the American Society for the Prevention of Cruelty to Animals (ASPCA) and co-founded the New York Society for the Prevention of Cruelty to Children (NYSPCC), dies at 76
- Mar 15 Squire Whipple, American engineer who invented the iron truss bridge, dies at 83 [1]
- Mar 16 Hippolyte Carnot, French statesman, dies at 86
- Mar 24 Vsevolod Garshin, Russian author (b. 1855)
- Mar 25 Francesco Faà di Bruno, Italian mathematician, and later Catholic priest and advocate for the poor, dies at 62
- Mar 26 Barghash bin Said, second Sultan of Zanzibar (b. 1837)
- Mar 29 Charles-Valentin Alkan, French pianist and composer, dies at 74