125 (number)

In mathematics

U.S. military

• Air National Guard 125th Special Tactics Squadron unit in Portland, Oregon
• US Air Force 125th Fighter Wing, Air National Guard unit at Jacksonville International Airport, Florida
• Piasecki H-21, an Arctic rescue helicopter
• US Navy VAW-125 squadron at Naval Station Norfolk, Virginia
• US Navy VFA-125 strike fighter squadron at Naval Air Station Lemoore, California
• , a US Navy fleet oiler during World War II
• , a US Navy minesweeper
• Northrop YC-125 Raider utility transport plane

  In transportation

• The Fiat 125 automobile
• Many motorcycle licenses and racing events limit engine capacity to 125cc. Examples of 125cc motorcycles include;
• * The Honda XRM 125 motorcycle
• * The Yamaha YZ125, for motocross
• The Harlem-125th Street station serving Harlem, New York City
• The InterCity 125, sometimes referred to simply as "one two five", a British high-speed train
• New Jersey Transit bus route 125
• London Buses route 125 is a Transport for London contracted bus route in London
• 125 is the number of many roads, including Mexican Federal Highway 125
• Pan Am Flight 125 from London’s Heathrow Airport to New York's John F. Kennedy International Airport which had pressurization problems on March 10, 1987
• The 125th Street Bridge crosses the Mississippi River in the Minnesota
• STS-125, a Space Shuttle Atlantis mission, the final mission to service the Hubble Space Telescope, launched May 11, 2009 at 2:01 pm EDT landed May 24, 2009 at 11:39:05 am EDT
• 125 - a class of sailing dingy popular in Australia.

  In other fields

• The year AD 125 or 125 BC
• 125 AH is a year in the Islamic calendar that corresponds to 742 - 743 CE
• 125 Liberatrix is a Main belt asteroid
• The atomic number of the yet-to-be-discovered element Unbipentium
• Sonnet 125 by William Shakespeare
• 125th Street, Manhattan, New York City
• * 125th Street, multiple subway stations
• CA-125, also known as CA125, is an abbreviation for cancer antigen 125
• 125 High Street is a 30-floor highrise in Boston