- Jun 1 Louis Alexandre Berthier, French marshal (b. 1853)
- Jun 16 Frederik Willem, Duke of Brunswick (1813-15), dies in battle at 43
- Jun 17 Hammida, Algerian admiral, dies in battle
- Jun 18 Thomas Picton, British general (killed in battle) (b. 1758)
- Jun 18 Guillaume Philibert Duhesme, French general (b. 1766)