A by-thirds Hyndburn Borough Council local election, was held on Thursday 3 May 2018.

Prior to the election the composition of the council was: Both Labour and Conservatives candidates challenged every ward, with Labour defending 7 existing seats, and Conservatives defending only 2 existing seats.

Only one candidate stood as a potential Green Party councillor, in Great Harwood's Overton ward.

After the election, the composition of the council's 35 seats was - NB: Five (of the 16) Council wards, where seats were NOT up for re-election in 2018, included the following wards - Altham, Baxenden and Church, plus Barnfield and Central in Accrington.

The St Oswalds ward seat, formerly held by UKIP Councillor Paul Thompson since 2014, and following his Death in October 2017, was left vacated without a by election called.