| Official Name: | Trebanos ward |
| Unitary Wales: | Neath Port Talbot |
| Lieutenancy Wales: | West Glamorgan |
| Country: | Wales |
| Constituency Westminster: | Neath |
| Constituency Welsh Assembly: | Neath |
| Councillor1: | Rebeca Lewis |
| Party1: | Plaid Cymru |
| Population: | 1,411 |
| Population Ref: | (2011 census) |
| Hide Services: | yes |
Trebanos is an electoral ward of Neath Port Talbot county borough, Wales, part of the Pontardawe community.
Trebanos includes some or all of the following areas: Trebanos, Craig Trebanos and Pontardawe, in the parliamentary constituency of Neath. Trebanos is bounded by the wards of Pontardawe to the north and east; Alltwen to the southeast; and Clydach of Swansea to the south and west. Trebanos includes open moorland and has a developed strip in the centre of the ward which lies in the Swansea Valley.
In the 2017 local council elections, the electorate turnout was %. The results were:
| Candidate | Party | Votes | Status | |
|---|---|---|---|---|
| Rebeca Lewis | Plaid Cymru | 284 | Plaid Cymru hold | |
| Rosemary Jones | Labour | 187 |