1865 (disambiguation)

1865 may refer to:


 * 1865 (number)
 * 1865 AD/CE; a year (ISO year +1865; Holocene calendar year 11865; 135 BP)
 * 1865 BC/BCE; a year (ISO year -1864; Holocene calendar year 8136; 2814 BP)
 * 1865 Cerberus, an Apollo asteroid, near-Earth object; the 1865th asteroid registered
 * Starr carbine Model 1865, a U.S. breechloading rifle
 * Springfield Model 1865, a U.S. breechloading rifle
 * Remington Naval Model 1865 Pistol, a U.S. Navy pistol
 * 1865 battery, a battery size for lithium-ion batteries
 * 1865 (podcast), a historical fiction podcast that ran from 2019 to 2021