- Jun 1 António Feijó, Portuguese poet and diplomat, born in Ponte de Lima, Portugal (d. 1917)
- Jun 5 Allvar Gullstrand, Swedish physician (Nobel 1911), born in Landskrona, Sweden (d. 1930)
- Jun 6 Henry John Newbolt, English poet and author (Studies Green & Gray), born in Bilston, Staffordshire, England (d. 1938)
- Jun 7 Philipp Lenard, Austrian physicist (Nobel 1905), born in Pozsony, Austria-Hungary (d. 1947)
- Jun 21 Johannes Schlaf, German writer and translator, born in Querfurt, Germany (d. 1941)
- Jun 21 Damrong Rajanubhab, Thai prince, son of King Mongkut and brother of King Chulalongkorn and historian, born in Bangkok, Thailand (d. 1943)