Sean Beighton (born November 22, 1988) is an American curler from Seattle, Washington.

Beighton played at the 2011 United States Men's Curling Championship as second under Jason Larway, but finished in ninth place and earned the nickname 'Chester.'

As third for Brady Clark, Beighton won his first national championship title, the first for the Granite Curling Club since 2004.

Beighton and his team then represented the United States at the 2013 Ford World Men's Curling Championship, finishing in ninth place with a 5–6 win–loss record.

The team also qualified to participate at the 2014 United States Olympic Curling Trials due to their performance at the nationals.