Timothy James Bottoms (born 30 August 1951) is an American actor and producer.
Bottoms was born in Santa Barbara, California, the eldest son of Betty (née Chapman) and James "Bud" Bottoms, who was a sculptor and art teacher. He is the brother of actors Joseph Bottoms (born 1954), Sam Bottoms (1955-2008) and Ben Bottoms (born 1960). In 1967, Bottoms toured Europe as part of the Santa Barbara Madrigal Society.
Bottoms made his film debut in 1971 as a horrifically mutilated World War I soldier in Dalton Trumbo's Johnny Got His Gun. The same year, he appeared alongside his brother Sam in The Last Picture Show. (He portrayed the same character in the 1990 sequel Texasville). He has appeared in other notable films such as The Paper Chase, Love and Pain and the Whole Damn Thing, and Elephant.