Tessa Sarah Ross CBE (born 1961) is a British film producer and executive. She was appointed Head of Film at Channel 4 in 2000 and ran Film4 and Film4 Productions from 2002 to 2014. Ross was appointed to the Board of the Royal National Theatre in 2011, and became Chief executive in 2014. She resigned in April 2015, citing concerns over the new leadership structure, but remained working with the National Theatre as a consultant. Ross received the BAFTA Award for Outstanding British Contribution to Cinema Award and was named as one of the 100 most powerful women in the United Kingdom by Woman's Hour in 2013. She is an honorary fellow of the National Film and Television School. In the 2010 New Year Honours, she was awarded the CBE for services to broadcasting.

Ross has been the executive producer of a number of notable British films, including Billy Elliot (2000), The Last King of Scotland (2006), This Is England (2006), Happy-Go-Lucky (2008), Slumdog Millionaire (2008), Hunger (2008), Four Lions (2010), 127 Hours (2010), Shame (2011), 12 Years a Slave (2013), Under the Skin (2013), Ex Machina (2015), 45 Years (2015), Room (2015), and Carol (2015).