The 2018–19 Welsh Alliance League, known as the Lock Stock Welsh Alliance League for sponsorship reasons, marked the 35th season of the Welsh Alliance League, comprising two divisions that represent the third and fourth levels of the Welsh football pyramid.
There were fifteen teams in each division, with the champions of Division 1 promoted to the newly established FAW Championship North & Mid, while the bottom two teams faced relegation to Division 2. In Division 2, the champions and runners-up were promoted to Division 1. No team was relegated from Division 2, as Meliden resigned from the Welsh Alliance League at the end of the season.
The season began on 11 August 2018 and concluded on 18 May 2019.
Division 1
Teams Conwy Borough, who were the previous season's champions, were promoted to the Cymru Alliance. They were replaced by Llandudno Junction, who were relegated from the Cymru Alliance.
The bottom two teams from the previous season, Pwllheli and Trearddur Bay, were relegated to Division 2 for 2018–19. However, Trearddur Bay resigned from the league in August 2018. Division 2 champions, Prestatyn Sports and runners-up, Bodedern Athletic, were promoted in their place.
Grounds and locations
Team Location Ground Barmouth & Dyffryn United Barmouth Wern Mynach Bodedern Athletic Bodedern Cae Tŷ Cristion, Village Hall Greenfield Greenfield Bagillt Road Llanberis Llanberis Ffordd Padarn Llandudno Albion Llandudno Ffordd Dwyfor Llandudno Junction Llandudno Junction The Flyover Llandyrnog United Llandyrnog Cae Nant Llangefni Town Llangefni Bob Parry Field Llanrug United Llanrug Eithin Duon Llanrwst United Llanrwst Gwydir Park Mynydd Llandegai Mynydd Llandygai Mynydd Llandegai Nantlle Vale Penygroes Maes Dulyn Penrhyndeudraeth Penrhyndeudraeth Maes Y Parc Prestatyn Sports Prestatyn Gronant Playing Fields St Asaph City St Asaph Roe Plas
League table
Results
Division 2
Teams Prestatyn Sports were champions in the previous season and were promoted to Division 1, along with runners-up Bodedern Athletic. They were replaced by Pwllheli, who were relegated from Division 1.
The bottom two teams from the previous season were Llannerch-y-medd and Llanfairpwll. However, Llannerch-y-medd were not relegated, and Llanfairpwll resigned from the league in August 2018. Gwynedd League champions, Holyhead Town and Vale of Clwyd and Conwy Football League Premier Division champions, Kinmel Bay, were promoted in their place.
Grounds and locations
Team Location Ground Aberffraw Aberffraw Tŷ Croes Amlwch Town Amlwch Lôn Bach Blaenau Ffestiniog Amateur Blaenau Ffestiniog Cae Clyd Gaerwen Gaerwen Lôn Groes Glan Conwy Glan Conwy Cae Ffwt Holyhead Town Holyhead Millbank Sports Field Kinmel Bay Kinmel Bay Cader Avenue Llannefydd Llannefydd Llannerch-y-medd Llanerch-y-medd Tan Parc Meliden Meliden Ffordd Tŷ Newydd Mochdre Sports Mochdre Swan Road Penmaenmawr Phoenix Penmaenmawr Cae Sling Pentraeth Pentraeth Bryniau Field Pwllheli Pwllheli Leisure Centre, Recreation Road Y Felinheli Y Felinheli Cae Selio, Bangor Street
League table
Results
References