The 2025–26 Welsh League Cup (known for sponsorship purposes as The Nathaniel MG Cup) was the 34th season of the Welsh League Cup competition, which was established in 1992.

Barry Town United beat the defending champions The New Saints in the final by 2–0 to win their first title since 2000.

Format 44 clubs in the Cymru Premier, Cymru North and Cymru South leagues entered the season's League Cup. Cardiff City and Swansea City also competed as wildcard entries. All Cymru Premier sides received a bye into the second round, alongside second tier sides Newtown, Airbus UK Broughton, Holywell Town and Llandudno from the Cymru North and Aberystwyth Town and Trethomas Bluebirds from the Cymru South.

First round The draws for the first and second rounds were made on 25 June 2025.

Northern Home teamScoreAway team18 July 2025Buckley Town4–0Holyhead HotspurRuthin Town0–0 PenrhyncochFlint Mountain1–3Denbigh TownGuilsfield3–0Mold Alexandra19 July 2025Rhyl 18792–1CaerswsGresford Athletic3–0Brickfield Rangers

Southern Home teamScoreAway team18 July 2025Pontypridd United0–0 Cwmbran CelticCaerau (Ely)3–4Trefelin19 July 2025Ammanford0–0 Cardiff City U21sCambrian United2–2 Treowen StarsCarmarthen Town1–4Swansea City U21sYnyshir Albions4–1Cardiff DraconiansLlantwit Major1–2Afan Lido20 July 2025Newport City2–0Baglan Dragons

Second round Northern

Home teamScoreAway teamCaernarfon Town3–0Colwyn BayLlandudno7–0Gresford AthleticRuthin Town0–9Connah’s Quay NomadsBuckley Town2–3NewtownGuilsfield2–2 Bala TownFlint Town United1–2Holywell TownThe New Saints7–1Airbus UK BroughtonRhyl 18792–2 Denbigh Town

Southern

Home teamScoreAway teamCardiff City U21s0–2Cambrian UnitedBarry Town United2–1Aberystwyth TownBriton Ferry Llansawel3–0Trethomas BluebirdsAfan Lido0–5Swansea City U21sYnyshir Albions1–4Llanelli TownHaverfordwest County5–0Newport CityTrefelin1–6PenybontCardiff MU4–0Pontypridd United

Third round The draw for the third round was made on 7 August 2025. Northern Home teamScoreAway team10 September 2025Caernarfon Town2–2 Holywell TownConnah’s Quay Nomads1–3The New SaintsNewtown1–1 Bala Town16 September 2025Llandudno3–1Denbigh Town

Southern

Home teamScoreAway team10 September 2025Barry Town United1–0Llanelli TownCambrian United1–1 Cardiff MUHaverfordwest County4–1Swansea City U21sPenybont2–2 Briton Ferry Llansawel

Quarter-finals The draw for the quarter-finals was made on 15 September 2025. Northern Home teamScoreAway team4 November 2025Newtown 3–6 LlandudnoThe New Saints 3–0 Caernarfon Town

Southern

Home teamScoreAway team4 November 2025Cambrian United 1–0 Briton Ferry LlansawelHaverfordwest County 0–2 Barry Town United

Semi-finals The draw for the semi-finals took place on 10 November 2025. Each team's ball number was decided by a go-kart race between former professional footballers Joe Ledley, Danny Gabbidon, Andy Legg and Scott Young. Each driver randomly chose a team to represent in the race, and that driver's position was given as the ball number. A normal draw was held after the race. The semi-finals were played on 6 December 2025.

Home teamScoreAway team6 December 2025The New Saints 2–1 LlandudnoCambrian United 0–3 Barry Town United

Final

Season statistics Top Goalscorers

Hat-trick

Player For Against Result Date Mark CadwalladerLlandudnoGresford Athletic7–0 (H)2 August 2025

Notes (H) – Home team(A) – Away team

References