Katherine Moennig (gebore 29 Desember 1977) is 'n Amerikaanse aktrise. Sy is bekend vir haar rolle in die rolprente The Shipping News (2001), Everybody's Fine (2009), The Lincoln Lawyer (2011), en Gone (2012).
- 2001: The Shipping News
- 2004: Invitation to a Suicide
- 2009: Everybody's Fine
- 2011: The Lincoln Lawyer
- 2012: Gone
- 2014: Default
- 2016: My Dead Boyfriend
- 2017: Lane 1974
- 2000: Young Americans
- 2004: The L Word
- 2009: Three Rivers
- 2013: Ray Donovan
- 2013: Tegan and Sara's Heartthrob: The Interviews
