Collet Barker | |
|---|---|
| Born | 31 December 1784 Hackney, Middlesex, England |
| Died | 30 April 1831 (aged 46) Coorong, South Australia, Australia |
| Buried | Unknown |
| Allegiance |  United Kingdom |
| Service |  British Army |
| Years of service | 1806–1831 |
| Rank | Captain |
| Unit | 39th Regiment of Foot |
| Battles / wars | Peninsular War |
Collet Barker (31 December 1784 – 30 April 1831) was a British military officer and explorer. He explored areas of South Australia, Western Australia and Cobourg Peninsula, Northern Territory.