|Number of teams||46|
|Current champions||Connah's Quay Nomads|
|Most successful club(s)||The New Saints|
|2022–23 Welsh League Cup|
The Cymru Premier League Cup, currently known as the Nathaniel MG Cup for sponsorship reasons, is a cup competition in Welsh football organised by the Cymru Premier.
The competition was established in 1992 and is considered to be the second-most important domestic cup competition for Welsh football clubs, after the older and more prestigious Welsh Cup. Unlike the Welsh Cup, where 135 teams entered in 2008–09, the competition is only open to the members of the Cymru Premier, the Cymru North, Cymru South and a very select few other clubs. It should not be confused with the Welsh Football League Cup, which was for the clubs in the Welsh Football League, which despite its name only covered the south and centre of Wales up until it was disbanded at the end of the 2018-19 season.
Since the inaugural season in 1992/93 the format of the competition has changed many times. The 2006/07 season saw the introduction of a new format for the competition. Beginning in August, the eighteen premier league teams are split into six regionalised groups of three teams. The six group winners and two runners-up enter a quarter-final knock-out phase, followed by a two legged semi-final match before ending with the final in April.
The current format, introduced in 2014/15, saw a radical shake up for the competition. The 12 Cymru Premier teams are joined by six teams each from the two feeder leagues, and also four wildcard entrants. 24 teams enter Round 1, with the previous season's four semi-finalists receiving a bye through to Round 2. The draw for each round is regionalized as per competition rules, with teams being divided between northern and southern sections. The format changed slightly for the 2018/19 season, with each round up to the semi-finals being regionalized, and the semis an open draw. The semi-finals will also take place over a weekend for the first time.
From 2019-20 the format was expanded significantly with all 44 teams from the top two tiers of the Welsh football league system taking part as well as two wildcard entries. Twenty-eight clubs will enter in Round 1, which will be made up of any club without floodlights; the two wildcard entries; and the remaining teams ranked lowest in their respective Tier 2 league from the previous season. Round 1 will be regionalised, as will all rounds up to the Semi-Final stage. The fourteen winners will join the eighteen remaining sides in Round 2. This will be seeded so that Premier League sides are not drawn against one another. The winner of the tournament gained entry to the Scottish Challenge Cup.
The first Welsh League Cup was won by Afan Lido in 1992/93, who beat Caersws FC 4–3 on penalties, after drawing in the final 1–1. The New Saints hold the record for the most League Cup titles; they have won the competition six times. Bangor City hold the distinction of making the most number of appearances in the final and losing on every occasion (6).
The cup is currently held by Connah's Quay Nomads, who defeated Cardiff Met 10-9 on penalties after a 0-0 draw.
The New Saints dominated the competition between 2015 and 2018, winning all four finals during that period. Saints have won nine of the ten finals they have appeared in. They have however not made the final since beating Cardiff Met in 2018.
The 2018–19 final between Cardiff Met and Cambrian & Clydach Vale holds the record attendance in the competition, with 1,503 fans witnessing Met's first major trophy win.
Since 2003, the League Cup has been named after its sponsor, giving it the following name:
The total prize fund for the competition is £15,000. The league awards £1,000 to each losing semi-finalist, £3,000 to the runner-up and £10,000 to the competition winners.
|1992–93||Afan Lido||1 – 1||Caersws||Park Avenue, Aberystwyth|
|Afan Lido won 4–3 on penalties|
|1993–94||Afan Lido||1 – 0||Bangor City||Park Avenue, Aberystwyth|
|1994–95||Llansantffraid FC||2 – 1||Ton Pentre F.C.||Latham Park, Newtown|
|1995–96||Connah's Quay Nomads||1 – 0||Ebbw Vale||Recreation Ground, Caersws|
|1996–97||Barry Town||2 – 2||Bangor City||Park Avenue, Aberystwyth|
|Barry Town won 4–2 on penalties|
|1997–98||Barry Town||1 – 1||Bangor City||Farrar Road, Bangor|
|Barry Town won 5–4 on penalties|
|1998–99||Barry Town||3 – 0||Caernarfon Town||Park Avenue, Aberystwyth|
|1999–2000||Barry Town||6 – 0||Bangor City||Park Avenue, Aberystwyth|
|2000–01||Caersws||2 – 0||Barry Town||Park Avenue, Aberystwyth|
|2001–02||Caersws||2 – 1||Cwmbran Town||Park Avenue, Aberystwyth|
|2002–03||Rhyl||2 – 2||Bangor City||Belle Vue, Rhyl|
|Rhyl won 4–3 on penalties|
|2003–04||Rhyl||4 – 0||Carmarthen Town||Latham Park, Newtown|
|2004–05||Carmarthen Town||2 – 0 (a.e.t.)||Rhyl||Latham Park, Newtown|
|2005–06||The New Saints||4 – 0||Port Talbot Town||Park Avenue, Aberystwyth|
|2006–07||Caersws||1 – 1||Rhyl||Park Avenue, Aberystwyth|
|Caersws won 3–1 on penalties|
|2007–08||Llanelli||2 – 0||Rhyl||Latham Park, Newtown|
|2008–09||The New Saints||2 – 0||Bangor City||Latham Park, Newtown|
|2009–10||The New Saints||3 – 1||Rhyl||The Airfield, Broughton|
|2010–11||The New Saints||4 – 3 (a.e.t.)||Llanelli||Park Avenue, Aberystwyth|
|2011–12||Afan Lido||1 – 1||Newtown||Park Avenue, Aberystwyth|
|Afan Lido won 3–2 on penalties|
|2012–13||Carmarthen Town||3 – 3||The New Saints||Latham Park, Newtown|
|Carmarthen Town won 3–1 on penalties|
|2013–14||Carmarthen Town||0 – 0||Bala Town||Park Avenue, Aberystwyth|
|Carmarthen Town won 3–1 on penalties|
|2014–15||The New Saints||3 – 0||Bala Town||Latham Park, Newtown|
|2015–16||The New Saints||2 – 0||Denbigh Town||Maesdu Park, Llandudno|
|2016–17||The New Saints||4 – 0||Barry Town United||Cyncoed Stadium, Cardiff|
|2017–18||The New Saints||1 – 0||Cardiff MU||Park Avenue, Aberystwyth|
|2018–19||Cardiff MU||2 – 0||Cambrian & Clydach Vale||Jenner Park, Barry|
|2019–20||Connah's Quay Nomads||3 – 0||STM Sports||Latham Park, Newtown|
|2020–21||Cancelled due to COVID-19 pandemic|
|2021–22||Connah's Quay Nomads||0 – 0||Cardiff MU||SDM Glass Stadium, Bridgend|
|Connah's Quay Nomads won 10–9 on penalties|
|Club||Winners||Runners-up||Total Appearance||Last Final|
|The New Saints||9||1||10||2018|
|Connah's Quay Nomads||3||–||3||2022|
|Port Talbot Town||–||1||1||2006|
|Cambrian & Clydach Vale||–||1||1||2019|