Champaign is the tenth largest city in the U.S. state of Illinois.

Champaign may also refer to:

• Champaign County, Illinois
  • Champaign Township, Champaign County, Illinois
• Champaign County, Ohio
• Champaign–Urbana Metropolitan Area

• Champaign (band)
• Champaign Central High School
• Champaign-Urbana Courier
• Champaign-Urbana Community Wireless Network
• Champaign-Urbana Mass Transit District
• "Champaign, Illinois", a song on The Grand Theatre, Volume One by the Old 97's
• Champaign ILL, an American comedy series

• Champagne (disambiguation)
• "Shampain", a song by Marina and the Diamonds from The Family Jewels