- Jun 4 Constant Prévost, French geologist, born in Paris (d. 1856)
- Jun 27 Thomas Say, American naturalist and father of descriptive entomology, born in Philadelphia, Pennsylvania (d. 1834)
- Jun 28 Harry Smith, English military commander and leader of British-Indian forces (Battle of Aliwal), born in Whittlesey, Cambridgeshire, England (d. 1860)