Patrick Boileau (born February 22, 1975 in Montreal, Quebec) is a Canadian former ice hockey defenceman. Selected by the Washington Capitals in the 1993 NHL Entry Draft, he spent years in the Capitals system mainly with their AHL affiliate Portland Pirates until he signed with the Detroit Red Wings in 2002. In 2003 he signed with the Pittsburgh Penguins. In 2004 he played in Switzerland for Lausanne HC and in 2005 he moved to Germany to play for the Frankfurt Lions of the Deutsche Eishockey Liga and also played for the Hamburg Freezers. In 2007–2008 he played with the Summum Chiefs de Saint-Jean-sur-Richelieu in the LNAH.