Robert Sean Leonard (gebore 28 Februarie 1969) is 'n Amerikaanse akteur. Hy is bekend vir sy rolle in die rolprente Dead Poets Society (1989), The Age of Innocence (1993), en Swing Kids (1993), en in die televisiereeks House (2004).
- 1987: My Best Friend Is a Vampire
- 1989: Dead Poets Society
- 1991: Married to It
- 1993: The Age of Innocence
- 1993: Swing Kids
- 1995: Killer: A Journal of Murder
- 1998: Standoff
- 1998: Ground Control
- 2001: Tape
- 2004: The I Inside
- 2011: Nantucket
- 2012: House M.D.: The Doctor Directs
- 1987: Bluffing It
- 1996: The Boys Next Door
- 1997: In the Gloaming
- 2001: A Glimpse of Hell
- 2003: A Painted House
- 2003: Reluctant Saint: Francis of Assisi
- 2006: House Unplugged
- 2012: House: Swan Song
- 2006: Dead Poets: A Look Back
- 2008: House, M.D., Season Four: New Beginnings
