- Jun 10 Frederick Cook, American explorer, claimed to have 1st discovered North Pole, born in Callicoon, New York (d. 1940)
- Jun 11 J. H. Leopold, Dutch poet (translated Omar Khayyam), born in 's-Hertogenbosch, Netherlands (d. 1925)
- Jun 13 W. B. Yeats, Irish poet (Wild Swans at Coole-Nobel 1923), born in Sandymount, Ireland (d. 1939)
- Jun 15 L H Perquin, Dutch religious radio speaker
- Jun 19 Alfred Hugenberg, German politician and businessman, born in Hanover (d. 1951)
- Jun 24 Robert Henri, American painter (The Eight) and leader of Ashcan school of painting, born in Cincinnati, Ohio (d. 1929)
- Jun 26 Bernard Berenson, American art critic (Italian Painters of the Renaissance), born in Vilnius, Lithuania, Russian Empire (d. 1959)
- Jun 26 Charles Bonin, French explorer and diplomat (China), born in Poissy, France (d. 1929)
- Jun 28 Otto Julius Bierbaum, German writer (Irrgarten Der Liebe), born in Grünberg, Province of Silesia, Kingdom of Prussia (d. 1910)
- Jun 29 Shigechiyo Izumi, once thought to be the world's oldest man ever but birth date now disputed (120 y 237 d), born in Isen, Tokunoshima, Satsuma Domain, Japan (d. 1986)
- Jun 29 William E. Borah, American lawyer and politician (Republican U.S. Senator from Idaho), born in Fairfield, Illinois (d. 1940)