- Apr 3 Frederik Willem van Eeden, Dutch utopian writer (Walden), born in Haarlem, Netherlands (d. 1932)
- Apr 6 René Lalique, French jeweller (“the inventor of modern jewellery”) and glass designer, born in Aÿ-Champagne, France (d. 1945) [1]
- Apr 7 Will Keith "W.K." Kellogg, American cereal manufacturer (Kellogg's cereal brand), born in Battle Creek, Michigan (d. 1951)
- Apr 13 James Ensor, Flemish painter and etcher (De lampenjongen), born in Ostend, Belgium (d. 1949)
- Apr 20 Charles Gordon Curtis, American inventor (Curtis-steam turbine), born in Boston, Massachusetts (d. 1953)
- Apr 20 Pieter Jelles Troelstra, Dutch politician (SDAP), born in Leeuwarden, Netherlands (d. 1930)
- Apr 22 Ada Rehan, Irish-American stage actress and comedian (Daly's Fifth Avenue Theatre), born in County Limerick, Ireland (d. 1916)
- Apr 29 Lorado Taft, American sculptor (Black Hawk), born in Elmwood, Illinois (d. 1936)