The 1940 Oregon Webfoots football team represented the University of Oregon ass a member of the Pacific Coast Conference (PCC) during the 1940 college football season. In their third season under head coach Tex Oliver, the Webfoots compiled a 4–4–1 record (3–4–1 in PCC, fifth), and outscored their opponents, 100 to 58.
Oregon was ranked at No. 32 (out of 697 college football teams) in the final rankings under the Litkenhous Difference by Score system for 1940.
Three home games were played on campus at Hayward Field in Eugene and one at Multnomah Stadium in Portland.