- Jun 3 Pieter Mijer, Dutch Governor-General of Dutch East Indies (1866-72)
- Jun 7 Theophilus Toulmin Garrard, American Brigadier General (Union Army), born in Clay County, Kentucky (d. 1902)
- Jun 8 Heinrich Wilhelm Ernst, Moravian violinist and composer, born in Brno (d. 1865)
- Jun 8 Spyridon Xyndas, Greek composer, born in Corfu, Greece (d. 1896)
- Jun 9 Hermann von Fehling, German chemist (Fehling's reagens)
- Jun 9 Johann Gottfried Galle, German astronomer (discovered Neptune), born in Radis, Kingdom of Saxony (d. 1910)
- Jun 12 Edmond Hébert, French geologist, born in Villefargau, Yonne, France (d. 1890)
- Jun 14 Fernando Wood, American politician, New York City mayor (1855-58 and 1860-62), born in Philadelphia, Pennsylvania (d. 1881)
- Jun 18 Ivan Goncharov, Russian novelist/travel writer (Oblomov)
- Jun 21 Félix Danjou, French church organist, arranger, music teacher, organ builder, and political journalist, born in Paris, France (d. 1866)
- Jun 27 John Pike Hullah, English composer, born in Worcester (d. 1884)
- Jun 28 Rudolf von Alt, Austrian painter, born in Vienna, Austria (d. 1905)