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 65%. The results were:

Candidate	Party	Votes	Status
Rebeca Lewis	Plaid Cymru	284	Plaid Cymru hold
Rosemary Jones	Labour	187

51°42′56″N 3°51′31″W / 51.71551°N 3.85856°W / 51.71551; -3.85856