| Pixels: | 150px |
| Country: | Australia |
| Teams: | 7 |
| Promotion: | Southern Championship |
| Levels: | 4 |
| Domest Cup: | Milan Lakoseljac Cup Australia Cup |
| Champions: | University of Tasmania |
| Current: | 2016 Football Federation Tasmania season |
The Tasmania Southern League One (Division One) is a soccer league in Southern Tasmania. It sits below the NPL Tasmania and Southern Championship in the Tasmanian league system, and nationally, all these leagues also sit under the A-League. It is run by the Football Federation of Tasmania (FFT). The league includes teams from Hobart and Southern Tasmania. The league composition has varied in some seasons, containing only senior teams from clubs and at other times also including some reserve teams from clubs higher in the Tasmanian league system.
| Team | Coach | Home ground | Location |
|---|---|---|---|
| Sandown Park | |||
| Pontville | |||
| North Chigwell | |||
| Michael Roach | North Warrane Oval | ||
| Sherburd Park | |||
| Kelvedon Park | |||
| Team | Coach | Home ground | Location | Current status |
|---|---|---|---|---|
| Athletic Centre | Playing in Social Leagues | |||
| Huon Valley | Playing in Social Leagues | |||
| Olinda Grove | Mount Nelson, Tasmania | Promoted to Premier League at end of 2011. | ||
The champions are the top of the table after the regular season, unlike many other football leagues in Australia there is no finals system in League One.
| Season | Champions | Notes |
|---|---|---|
| 2010 | Beachside FC | Promoted to Premier League in 2011. |
| 2011 | University | Promoted to Premier League in 2012. |
| 2012 | Derwent United[1] | No promotion due to league re-organisation caused by commencement of Victory League in 2013. |
| 2014 | Metro Claremont | Promoted to Southern Championship 2015. |