Richard J. Lewis is a Canadian television and film director.

This biography of a living person needs additional citations for verification. (June 2019)

From 2002 to 2009, Lewis worked on the CBS television crime drama series CSI: Crime Scene Investigation as writer, director and co-executive producer.

He is best known for directing the films Whale Music (1994) and Barney's Version (2010), the latter featuring a Golden Globe winning performance by actor Paul Giamatti as well as his work on the HBO series Westworld.^[1]

• Alfred Hitchcock Presents (1985)
• Superboy (1988)
• Whale Music (1994)
• Jake and the Kid (1995)
• North of 60 (1993–1997)
• Michael Hayes (1997)
• Due South (2 episodes, 1996; 1 episode, 1997)
• Little Men (1 episode, 1999)
• Justice (1999)
• Falcone (1999)
• Traders (1 episode, 2000)
• The District (1 episode, 2000)
• Family Law (3 episodes, 2000–2001)
• The Chris Isaak Show (1 episode, 2001)
• K-9: P.I. (2002) (V)
• Waterfront (1 episode, 2006)
• CSI: Crime Scene Investigation (33 episodes, 2000–2006)
• Barney's Version (2010)
• Person of Interest (2012)
• Westworld (2016–2022)
• Ransom (2017)
• A Million Little Things (2018–2023)
• The Enemy Within (2019)
• Penny Dreadful: City Of Angels (2020)
• Zoey's Extraordinary Playlist (2021)