Robin Grimsey Osborne FBA (born 11 March 1957) is an English historian of classical antiquity, who is particularly interested in Ancient Greece.
From 1982 to 1986 Osborne was a Junior Unofficial Fellow at King's College, University of Cambridge.
In 1986 he moved to Oxford University, initially as a three-year fixed term Fellow at Magdalen College before in 1989 being appointed a University Lecturer in Ancient History and a Fellow of Corpus Christi College.
In 2001 Osborne returned to Cambridge to take up the position of Professor of Ancient History and was appointed a Fellow of King's College.
In 2019, he was joint winner of the Runciman Award for his book The Transformation of Athens: Painted Pottery and the Creation of Classical Greece.