Robert Michael Lally (born February 12, 1952) is a former American football linebacker who played in the National Football League (NFL) and the World Football League (WFL). Lally played collegiate ball for Cornell University and served as team captain. He was a First Team Selection to the Silver Anniversary All-Ivy Football Team (1971), a Cornell Hall of Fame Inductee (1982) and was selected to the Cornell All-Time Football Team (1887–2003). At Cornell, Lally was also President of the Red Key Society and was a member of the Quill and Dagger Society. He played for Bergen Catholic in Oradell, New Jersey where he was elected into the Hall of Fame (1991).

He was drafted by the Miami Dolphins in the 1974 NFL Draft and the Memphis Southmen of the WFL. He signed with the Southmen where he was the '75 team captain and played MLB with teammates Larry Csonka, Jim Kiick, Paul Warfield, Danny White and John Huarte for the two years the league existed (1974-1975). In 1976, Lally signed with the NFL's Green Bay Packers. Lally played for the Packers for 1 season, in 1976. During his off seasons, he earned his master's degree in finance from the Georgia Institute of Technology.