11 Ọktoba bu ubochi nke 11th (nke iri na out) na onwa ana kpo Ọktoba. Na Gregorian calender, 11 Ọktoba bu ubochi nke 284th (285th na afo nke ana-kpo leap year) na afo. Anyi nwere agugu ubochi 81 du mgbe afo na agwu.