- Jul 4 Karl Friedrich Eichhorn, German jurist, dies at 72
- Jul 6 Georg Ohm, German physicist and mathematician (Ohm's law), dies at 65
- Jul 13 José María Vargas, Venezuelan doctor, botanist and 2nd President of Venezuela (1835-36), dies at 68
- Jul 15 Wincenty Studzinski, Polish violinist and composer, dies at 39
- Jul 18 Abbas Hilmi I, viceroy of Egypt, dies at about 41
- Jul 31 Samuel Wilson, American meat packer and possible namesake of Uncle Sam, dies at 87