- Oct 12 Amintore Galli, Italian composer, born in Perticara, Italy (d. 1919)
- Oct 17 Franz Ehrle, German Jesuit and Vatican librarian (modernised the Vatican Library), born in Isny im Allgäu, Kingdom of Württemberg, (d. 1934)
- Oct 26 Hendrik Waelput, Flemish composer and conductor (Forest, Stella), born in Ghent, Belgium (d. 1885)
- Oct 28 Zygmunt Florenty Wróblewski, Polish physicist and chemist, born in Grodno, Russian Empire (d. 1888)
- Oct 30 Gustav Weber, Swiss organist, choral conductor, and composer, born in Münchenbuchsee, Switzerland (d. 1887)