| Birth Date: | 29 June 1916 |
| Birth Place: | Wortley, Leeds, West Yorkshire, England |
| Occupation: | geomorphologist |
Joseph Newell (Joe) Jennings (29 June 1916 – 24 August 1984) was an Australian geomorphologist.
He was born in Wortley, Leeds, West Yorkshire, England and educated at the Oldershaw School for Boys, Wallasey, Cheshire then studied geography at St Catharine's College, Cambridge. In 1952 he was appointed reader in geomorphology at the Australian National University. He was appointed professorial fellow in 1966 and was a foundation member of the department of biogeography and geomorphology in 1968.