Sean Polwart (born 14 April 1990) is a Rugby union footballer who plays as a flanker for Auckland in New Zealand's ITM Cup. He made his provincial debut during 2010 and ahead of the 2013 season he has made 26 appearances and scored 1 try. He has been on the fringes of the Blues squad since 2011 and has again been named in the franchise's Wider Training Squad for the 2013 Super Rugby season.
Polwart won the 2010 IRB Junior World Championship with New Zealand Under 20 scoring 2 tries in 5 games.
He joined the Chiefs prior to the 2015 Super Rugby season.