Coast Highway may refer to certain segments of the following highways:

• California State Route 1
• Big Sur Coast Highway
• Old Coast Road (Big Sur)
• San Diego County Route S21
• U.S. Route 101
  • U.S. Route 101 in California
  • U.S. Route 101 in Oregon
  • U.S. Route 101 in Washington

• Coast Highway station, Oceanside, California
• Pacific Coast Highway (disambiguation)
• Pacific Highway (disambiguation)