C25

C25 or C-25 may refer to:

Vehicles

Aircraft

• Boeing VC-25, an American aircraft operated as Air Force One
• Caudron C.25, a French biplane
• Cierva C.25, a British autogyro
• Lockheed C-25 Altair, an American military transport

Automobiles

• BSA C25 Barracuda, a British motorcycle
• Carlsson C25, a German supercar
• Citroën C25, a French van

Ships and boats

• Catalina 25, an American sailboat
• , a C-class submarine of the Royal Navy

Other uses

• C-25 highway (Spain), in Catalonia
• C25 road (Namibia)
• Caldwell 25, a globular cluster
• OMX Copenhagen 25, an index on the Copenhagen Stock Exchange
• Pancreatic cancer
• Siemens C25, a mobile phone
• Vienna Game, a chess opening
• Waverly Municipal Airport, in Waverly, Iowa
• Isolate C25 of the bacterium Acidithrix ferrooxidans
• C25 gas, a gaseous mixture of 75% Argon and 25% Carbon Dioxide, commonly used in MIG welding.