Longwell is a surname. Notable people with the surname include:
Chester Ray Longwell (1887–1975), American geologist Gary Longwell (born 1971), Irish international rugby player Jeff Longwell (born 1960), American politician and businessman John Longwell (1883 – ?), American football player, football and basketball coach, and dentist Mark Longwell (born 1960), American soccer player Ryan Longwell (born 1974), American football player Sarah Longwell, American political strategist and publisher