From 1951 to 1977, Walbank was Rathbone Professor of Ancient History and Classical Archaeology at the University of Liverpool. After retirement he was a professor emeritus at Liverpool and an Honorary Fellow of Peterhouse.
Walbank's published works include Aratos of Sicyon (1933), Philip V of Macedon (1940), The Awful Revolution (1946; 1969), Polybius (1972; 1990), A Historical Commentary on Polybius, 3 vols. (1957, 1967, 1979), The Hellenistic World (1981) and, with N.G.L. Hammond, A History of Macedonia, Vol. III: 336–167 BC. He also served as the joint editor of volumes 7 and 8 of the Cambridge Ancient History.
- His Own Executioner, Derek Collett
- Momigliano, Arnaldo. "F.W. Walbank", The Journal of Roman Studies, Vol. 74. (1984).