Sidmouth may refer to:

• Sidmouth, coastal town in Devon, England
  • Sidmouth Folk Week
  • Sidmouth Herald
  • Sidmouth railway station
• Sidmouth, Tasmania, a locality in Tasmania, Australia
• Sidmouth Rock (Tasmania)
• Viscount Sidmouth, title in the Peerage of the United Kingdom
  • Henry Addington, 1st Viscount Sidmouth (1759-1844)

• Stronghold (1951 film)
• Stronghold (film)
• Stronghold, Washington, D.C.
• Strong-Huttig School District 83
• Strong-Huttig School District No. 83
• Strongin
• Strong Interest and Skills Confidence Inventory
• Strong in the Rain
• Strong In The Rain (book)
• Strong in the Real Way
• Strong Iodine Solution
• Strong Island (disambiguation)
• Strong Island (film)
• Strong leader
• Strong link weak link
• Strong Love
• Strongly interacting dark matter
• Strongly Mahlo cardinal
• Strongly NP-complete
• Strongly real element
• Strongly unimodal
• Strongman (Bruce Olafsen)
• Strongman Burner
• Strongman-Campagnolo
• Strongman-Campagnolo-Wilier