The 2011 Heineken Cup Final was the final match of the 2010–11 Heineken Cup, the 16th season of Europe's top club rugby union competition. The match was played on 21 May 2011 at Millennium Stadium in Cardiff, Wales. The match was contested by Northampton Saints of England and Leinster of Ireland, the second Heineken Cup final for each club. Leinster won the match 33–22 after being 22–6 down at half-time. The win was Leinster's second win in three years of the competition.