| Basil Joseph Guy Marlow | |
| Birth Date: | 1920 |
| Death Date: | 1993 |
| Nationality: | Australian |
| Field: | Mammalogy |
| Spouse: | Judith King |
| Work Institutions: | Australian Museum |
Basil Joseph Guy Marlow (1920 – 1993) was a British born Australian mammalogist who made significant contributions to the study of mammal ecology and behaviour in Australia. He emigrated to Australia in 1954, originally working at the CSIRO.[1] He then worked at the Australian Museum as the head of the Mammal department from 1958 until 1980.[2] He was married to the marine zoologist Judith King.
Marlow participated in the 1972–1973 Auckland Islands Expedition where he studied the New Zealand sea lion on the Auckland Islands.