Patrick Wiercioch (born September 12, 1990 in Vancouver, British Columbia) is a Canadian defenceman in the Ottawa Senators' system.
He played Tier II Junior "A" for the Burnaby Express in 2006-07 and the Omaha Lancers in 2007-08. The Senators chose him 42nd overall in the 2008 NHL Entry Draft.
From 2008 to 2010 he played for the University of Denver. In 2010 he left the school to play pro hockey.