A chieftain is a tribal chief or village head.

Chieftain or Chieftains may refer also to:

• A position subordinate to Chief of a Scottish clan.
• Chieftain (tank), the main battle tank of the British Army during the 1960s and 1970s
• The Chieftain, a 1894 comic opera by Arthur Sullivan and F. C. Burnand.
• The Chieftain (film), a 1984 Norwegian drama film
• Chieftains Museum, Cherokee museum in Rome, Georgia
• The Chieftains, a traditional Irish musical group
• MV Chieftain, a UK passenger ferry
• Chieftain Products, a former Canadian toy and game company
• Chieftain, a line of computers sold by Smoke Signal Broadcasting
• Nicholas Moran, a historian of armored fighting vehicles, also known as The Chieftain

• Piper PA-31 Navajo Chieftain, a light aircraft
• Chief (disambiguation)