Sean McCann may refer to:

• Sean McCann (soldier) (born 1950), Irish Defence Forces Chief of Staff
• Sean McCann (actor) (born 1935), Canadian television actor
• Séan McCann (musician) (born 1967),Canadian, member of Great Big Sea and Sean McCann & The Committed
• Sean John McCann, member of the Provisional Irish Republican Army
• Sean McCann (politician) (born 1971), Michigan State Representative