Surprise Valley may refer to:

• Surprise Valley, Modoc County
• Surprise Valley, San Bernardino County
• Surprise Valley, California, former name of Cedarville, California
• Surprise Valley No. 9, Saskatchewan, a rural municipality in Canada
• "Surprise Valley", a song by Widespread Panic from their 1999 album 'Til the Medicine Takes

• Bayles, Cumbria
• Bayles lake, illinois
• Bayles Lake (Illinois)
• Bayles railway station
• Bayless
• Bayless Conley
• Bayless Markets
• Bayless Senior High School
• Bayley
• Bayley Hazen Military Road
• Bayley-Hazen Military Road
• Bayley House
• Bayleys, Barbados
• Bayley Scales of Infant Development
• Bayley (surname)
• Baylham
• Baylham, Suffolk
• Bayliner
• Baylink
• Baylink Ferry
• Baylis
• Baylis Court School
• Baylis Road
• Bayliss
• Bayliss and Starling Society