Valiant may refer to:

In Chrysler:

• Plymouth Valiant, automobile manufactured by the Plymouth division of Chrysler Corporation in the United States from 1960 to 1976
• Chrysler Valiant, automobile manufactured by Chrysler Australia from 1962 to 1981
• Chrysler Valiant Charger, automobile manufactured by Chrysler Australia from 1971 to 1976

In comics:

• Prince Valiant, comic strip
• Valiant (comic), British comic published between 1962 and 1976
• Valiant Comics, comic book publisher

In fiction:

• Eddie Valiant, Californian private investigator and one of the main characters in Who Censored Roger Rabbit? and its film adaptation, Who Framed Roger Rabbit?
• USS Valiant (NCC-74210), ship in the Star Trek universe featured in the Deep Space Nine episode "Valiant"
• "Valiant" (DS9 episode), episode of Star Trek: Deep Space Nine
• Valiant : A Modern Tale of Faerie, urban fantasy novel by Holly Black
• Valiant, airborne aircraft carrier in Doctor Who
• Destin Faroda, the Valiant of Ogre Battle: The March of the Black Queen video game

In film and television:

• The Valiant (1929 film), which tells the story of a man condemned to execution
• The Valiant (1962 film), directed by Roy Ward Baker
• The Valiant, a one act play on which both the above films were based
• Valiant (2005 film), 2005 movie about British homing pigeons
• "Valiant" (Merlin), second episode of the British television series Merlin

In military:

• BT-13 Valiant, World War II-era basic trainer aircraft built by Vultee Aircraft for the United States Army Air Corps
• HMS Valiant (1863), ironclad battleship of the Hector class
• HMS Valiant (1914), Queen Elizabeth-class battleship of the Royal Navy
• HMS Valiant (S102), the second of Britain's nuclear-powered submarines
• USCGC Valiant (WMEC-621), United States Coast Guard medium endurance cutter
• USS Valiant, two United States Navy ships
• Valiant class submarine, the first fully British nuclear fleet submarine
• Valiant tank, British tank design of the Second World War
• Vickers Valiant, British bomber

In other fields:

• Valiant Records, independent record label which was acquired in 1965 by Warner Bros
• The Valiants is the nickname of the British football club Port Vale F.C.
• The Valiant Sixty were a group of early leaders and activists in the Religious Society of Friends (Quakers) in the latter part of the 17th century

People named Valiant:

• Jimmy Valiant, professional wrestler
• Leslie Valiant, British computer scientist and computational theorist