115

115 may refer to:
 * 115 (number), the number
 * AD 115, a year in the 2nd century AD
 * 115 BC, a year in the 2nd century BC
 * 115 (Hampshire Fortress) Corps Engineer Regiment, Royal Engineers, a unit in the UK Territorial Army
 * 115 (Leicestershire) Field Park Squadron, Royal Engineers, a unit in the UK Territorial Army
 * 115 (New Jersey bus)
 * 115 (barge), a whaleback barge
 * 115 km, rural locality in Russia
 * The homeless emergency telephone number in France
 * 115 Thyra, a main-belt asteroid

11/5 may refer to:
 * 11/5, an American hip hop group from San Francisco, California
 * November 5 (month–day date notation)
 * May 11 (day–month date notation)
 * {11/5}, a type of regular hendecagram

1/15 may refer to:
 * January 15 (month–day date notation)