David Russell Strathairn (born January 26, 1949) is an American actor, best known for his portrayal of journalist Edward R. Murrow in the feature film Good Night, and Good Luck (2005), for which he was nominated for an Academy Award. He also starred in L.A. Confidential (1997), Godzilla (2014), and the Bourne franchise (2007–2012).

Strathairn appeared in supporting roles in many notable films such as A League of Their Own (1992), Sneakers (1992), The Firm (1993), The River Wild (1995), Lincoln (2012), Nomadland (2020), and Nightmare Alley (2021). He is a frequent collaborator with director John Sayles, who is a fellow graduate of Williams College.

On television, Strathairn is known for his recurring roles in The Sopranos (2004), Alphas (2011–2012), The Blacklist (2015–2016), Billions (2017–2019), and The Expanse (2018–2019). He received a Primetime Emmy Award win and a Golden Globe Award nomination for his performance in the HBO television film Temple Grandin (2010).