| Honorific-Prefix: | The Honourable |
| Rob Valentine | |
| Honorific-Suffix: | MLC |
| Nationality: | Australian |
| Order: | 66th Lord Mayor of Hobart |
| Term Start: | 24 March 1999 |
| Term End: | 25 October 2011 |
| Deputy: | Helen Burnet |
| Predecessor: | John Freeman |
| Successor: | Damon Thomas |
| Birth Date: | 15 June 1950 |
| Party: | Independent |
| Order1: | Member of the Tasmanian Legislative Council for Hobart |
| Predecessor1: | Doug Parkinson |
| Term Start1: | 5 May 2012 |
| Term End1: | 4 May 2024 |
| Succeeded1: | Cassy O'Connor |
Robert Henry Francis Valentine (born 15 June 1950) is an Australian politician. He was the Lord Mayor of the City of Hobart local government area, in the State of Tasmania, Australia, from 1999 to 2011.[1] In 2012, he was elected to the Tasmanian Legislative Council for the division of Hobart.[2] He retired at the 2024 Tasmanian Legislative Council periodic election.[3]
Valentine is the great-grandson of Francis David Valentine, who was Mayor from 1925 to 1926.[4]
Valentine is also the great-nephew of Edward Brooker (a previous premier of Tasmania) and is the longest continuously-serving Lord Mayor in the History of Hobart (since 1853).