| Deputy Premier of Tasmania | |
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| Department of Premier and Cabinet | |
| Style | The Honourable |
| Member of |
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| Reports to | Premier of Tasmania |
| Seat | Executive Building 15 Murray Street, Hobart |
| Nominator | Premier of Tasmania |
| Appointer | Governor of Tasmania on the advice of the premier |
| Term length | At the Governor's pleasure |
| Formation | 26 August 1958 |
| First holder | John James Dwyer |
The deputy premier of Tasmania is a role in the Government of Tasmania assigned to a responsible Minister in the Australian state of Tasmania. It has second ranking behind the premier of Tasmania in Cabinet, and its holder serves as acting premier during absence or incapacity of the premier. The deputy premier may either be appointed by the premier during the cabinet formation process, or may be elected by caucus. Due to the contingent role of the deputy premier, they almost without exception have additional ministerial portfolios. The current deputy premier of Tasmania is Guy Barnett.