172 (disambiguation)

172 may refer to:


 * The year 172 of the Gregorian calendar
 * The number 172 (number)
 * The Cessna 172 "Skyhawk", a single engine, high wing, light airplane produced by Cessna Aircraft Company
 * 172 BC
 * British Rail Class 172, a Diesel multiple unit built by Bombardier Transportation part of the Turbostar family in 2010