Elections to Dungannon and South Tyrone Borough Council were held on 5 May 2011 on the same day as the other Northern Irish local government elections.

The election used four district electoral areas to elect a total of 22 councillors.

Note: "Votes" are the first preference votes.

2005: 2 x DUP, 1 x Sinn Féin, 1 x UUP, 1 x SDLP 2011: 2 x DUP, 1 x Sinn Féin, 1 x UUP, 1 x SDLP 2005-2011 Change: No change 2005: 2 x Sinn Féin, 1 x DUP, 1 x UUP, 1 x SDLP 2011: 2 x DUP, 1 x Sinn Féin, 1 x UUP, 1 x SDLP 2005-2011 Change: DUP gain from Sinn Féin 2005: 2 x DUP, 2 x Sinn Féin, 1 x UUP, 1 x SDLP 2011: 2 x DUP, 2 x Sinn Féin, 1 x UUP, 1 x Independent 2005-2011 Change: Sinn Féin gain from SDLP, Independent leaves Sinn Féin 2005: 4 x Sinn Féin, 1 x SDLP, 1 x UUP 2011: 4 x Sinn Féin, 1 x SDLP, 1 x UUP 2005-2011 Change: No change