Carrier has several different meanings:

• in telecommunication, a carrier wave
• in biology, an asymptomatic carrier
• the Carrier tribe, a First Nations tribe living in British Columbia, Canada; also the name of their Athabaskan language
• a common carrier, a transport business (shipping or telecom)
• an aircraft carrier
• Willis Carrier, the inventor of air-conditioning
  • Carrier , the company which he founded
• Carrier , a video game for the Sega Dreamcast
• the town of Carrier, Oklahoma
• a unit in the computer game StarCraft, the Protoss Carrier.