- 3 - 20Into the BlackJun. 20, 2011
- 3 - 19Out of the BlueJun. 13, 2011
- 3 - 18CarentanJun. 06, 2011
- 3 - 17NormandyMay. 23, 2011
- 3 - 16AwakeningMay. 16, 2011
- 3 - 15WingmanMay. 09, 2011
- 3 - 14MetamorphosisMay. 02, 2011
- 3 - 13One NightApr. 25, 2011
- 3 - 12HangoverApr. 22, 2011
- 3 - 11Pax RomanaApr. 15, 2011
- 3 - 10Hollow MenDec. 17, 2010
- 3 - 9VigilanteDec. 10, 2010
- 3 - 8For King and CountryDec. 03, 2010
- 3 - 7BreachNov. 26, 2010
- 3 - 6AnimusNov. 19, 2010
- 3 - 5Hero II: Broken ArrowNov. 12, 2010
- 3 - 4Trail of BloodNov. 05, 2010
- 3 - 3Bank JobOct. 29, 2010
- 3 - 2FirewallOct. 22, 2010
- 3 - 1Kali (3)Oct. 15, 2010
The third season of the Canadian science fiction–fantasy television series Sanctuary, premiered on Syfy in the United States on October 15, 2010 and consists of 20 episodes. Created by Damian Kindler, the series was adapted from a series of webisodes released in 2007. The increased number of episodes in this season allows the producers to include numerous story arcs. The second half of the third season premiered on April 15, 2011 until it was moved to Monday nights on April 25, 2011.