The 2009 Denver Outlaws season was the fourth season for the Outlaws in Major League Lacrosse. Coming off of their second championship loss and an 8–4 record in the previous year, the Outlaws were looking to avenge themselves. They would end up finishing with a 9–3 record and clinch a playoff spot for the fourth consecutive time. However, they would end up losing in the championship game for the third time to the Toronto Nationals by a 10–9 score.