Changes before the season

withdrew after failed to get a license to participate in the 2009 League of Ireland.

joined the 2009 FAI Underage League Pool 3.

renamed .

Participating teams

Team	Base	Stadium	Comment
	Athlone	Lissywoollen	The U20 team of First Division team
	Dublin	DCU	The U20 team of Premier Division team
	Bray Bray Bray is a town in north County Wicklow, Ireland. It is a busy urban centre and seaside resort, with a population of 31,901 making it the fourth largest in Ireland as of the 2006 census...	Carlisle Grounds Carlisle Grounds The Carlisle Grounds is a football stadium in Bray, County Wicklow, Ireland, situated directly behind the Bray D.A.R.T. station. It is home to Bray Wanderers A.F.C. Its current capacity is roughly 3,000.-History:...	The U20 team of Premier Division team
	Castlebar Castlebar Castlebar is the county town of, and at the centre of, County Mayo in Ireland. It is Mayo's largest town by population. The town's population exploded in the late 1990s, increasing by one-third in just six years, though this massive growth has slowed down greatly in recent years...	Celtic Park (Castlebar) Celtic Park (Castlebar) Celtic Park is the home of Castlebar Celtic who play in the Newstalk A Championship, the third tier of Irish football. The total capacity is 1,500.-History:Celtic Park is the home of Irish amateur football club Castlebar Celtic...	The U20 team of A Championship A Championship The A Championship was the third tier in the Republic of Ireland football league system. It was created in 2008 by the FAI to act as the first stop for clubs hoping to move into the League of Ireland, but cancelled at the end of the 2011 season...  team
	Cork Cork (city) Cork is the second largest city in the Republic of Ireland and the island of Ireland's third most populous city. It is the principal city and administrative centre of County Cork and the largest city in the province of Munster. Cork has a population of 119,418, while the addition of the suburban...	Bishopstown Bishopstown Bishopstown is a southwestern suburb of Cork, Ireland with a population of 24,136 people. Baile an Easpaig, anglicised Bishopstown, consists of two townlands which are Ballineaspigmore and Ballineaspigbeg...	The U20 team of Premier Division team
	Derry Derry Derry or Londonderry is the second-biggest city in Northern Ireland and the fourth-biggest city on the island of Ireland. The name Derry is an anglicisation of the Irish name Doire or Doire Cholmcille meaning "oak-wood of Colmcille"...	Brandywell	The U20 team of Premier Division team
	Drogheda Drogheda Drogheda is an industrial and port town in County Louth on the east coast of Ireland, 56 km north of Dublin. It is the last bridging point on the River Boyne before it enters the Irish Sea....	United Park United Park Hunky Dorys Park is a football stadium in Drogheda, Ireland. The ground has been home to League of Ireland side Drogheda United since 1979. The ground has a capacity of 2,000 with 400 seats...	The U20 team of Premier Division team
	Dundalk Dundalk Dundalk is the county town of County Louth in Ireland. It is situated where the Castletown River flows into Dundalk Bay. The town is close to the border with Northern Ireland and equi-distant from Dublin and Belfast. The town's name, which was historically written as Dundalgan, has associations...	Oriel Park Oriel Park Oriel Park is a multi-purpose stadium in Dundalk, County Louth, Republic of Ireland. It is used mostly for football matches and is the home stadium of Dundalk F.C. Its current capacity is about 4,500 with 3,000 seats. The ground was opened in 1919.-History:...	The U20 team of Premier Division team
	Carlow Carlow Carlow is the county town of County Carlow in Ireland. It is situated in the south-east of Ireland, 84 km from Dublin. County Carlow is the second smallest county in Ireland by area, however Carlow Town is the 14th largest urban area in Ireland by population according to the 2006 census. The...	Tullow Tullow Tullow is a town in County Carlow, Ireland. It is located on the River Slaney where the N81 road intersects with the R762.-History:There is a statue of Father John Murphy, one of the leaders of the 1798 Rebellion, who was captured near Tullow and executed in the Market Square on 2 July...	The U20 team of A Championship A Championship The A Championship was the third tier in the Republic of Ireland football league system. It was created in 2008 by the FAI to act as the first stop for clubs hoping to move into the League of Ireland, but cancelled at the end of the 2011 season...  team
	Ballybofey Ballybofey Ballybofey is a town located on the south bank of the River Finn, County Donegal, Ireland. Along with the smaller town of Stranorlar on the north side of the River Finn, Ballybofey makes up the Twin Towns....	Finn Park Finn Park Finn Park is a football stadium in Ballybofey, Ireland, the home of League of Ireland Premier Division team Finn Harps F.C., and has a capacity of 7,500 with 400 seats...	The U20 team of First Division team
	Galway Galway Galway or City of Galway is a city in County Galway, Republic of Ireland. It is the sixth largest and the fastest-growing city in Ireland. It is also the third largest city within the Republic and the only city in the Province of Connacht. Located on the west coast of Ireland, it sits on the...	Terryland Park Terryland Park Terryland Park is a multi-purpose stadium in Galway, Ireland, owned by the Galway & District Football League. It is currently used for association football matches and has been the home ground of Galway United since 1977.- History :...	The U20 team of Premier Division team
	Newbridge Newbridge, County Kildare The earliest known mention of Newbridge was by traveller and bookseller John Dunton in 1698, though he does not refer to any settlement other than at Ballymany....	Clane Clane Clane is a town on the River Liffey and in the barony of Clane in County Kildare, Ireland, from Dublin.Its population of 4,968 makes it the eighth largest town in Kildare and the 78th largest in the Republic of Ireland....	The U20 team of First Division team
	Kilkenny Kilkenny Kilkenny is a city and is the county town of the eponymous County Kilkenny in Ireland. It is situated on both banks of the River Nore in the province of Leinster, in the south-east of Ireland...	Buckley Park Buckley Park Buckley Park is a multi-purpose stadium on the Callan road Kilkenny, Republic of Ireland. Kilkenny City purchased of land from a local farmer by the name of Mick Murphy for £16,000. The ground was originally called Tenney Park. It is currently used for football matches and was the home stadium...
	Limerick Limerick Limerick is the third largest city in the Republic of Ireland, and the principal city of County Limerick and Ireland's Mid-West Region. It is the fifth most populous city in all of Ireland. When taking the extra-municipal suburbs into account, Limerick is the third largest conurbation in the...	Athea Athea Athea suffered severe flooding in the summer of 2008 with residences sustaining serious damage especially along the river Galey. Athea National School also incured minor damage.-Landscape:...	The U20 team of First Division team
	Longford Longford Longford is the county town of County Longford in Ireland. It has a population of 7,622 according to the 2006 census. Approximately one third of the county's population resides in the town. Longford town is also the biggest town in the county...	Flancare Park Flancare Park Flancare Park is a soccer stadium in Longford, Ireland. It is the home stadium of League of Ireland side Longford Town F.C.. Flancare Park has also held numerous international underage matches. The stadium underwent a huge redevelopment at the end of 2000/2001 season...	The U20 team of First Division team
	Galway Galway Galway or City of Galway is a city in County Galway, Republic of Ireland. It is the sixth largest and the fastest-growing city in Ireland. It is also the third largest city within the Republic and the only city in the Province of Connacht. Located on the west coast of Ireland, it sits on the...	Fahy's Field	The U20 team of First Division team
	Monaghan Monaghan Monaghan is the county town of County Monaghan in Ireland. Its population at the 2006 census stood at 7,811 . The town is located on the main road, the N2 road, from Dublin north to both Derry and Letterkenny.-Toponym:...	Kingspan Century Park Kingspan Century Park Gortakeegan is the home ground of Irish side Monaghan United who play in the League of Ireland First Division. The ground has an overall capacity of 2,000 including a single stand which seats 620. The ground was formerly known as Kingspan Century Park....	The U20 team of First Division team
	Dublin	Richmond Park Richmond Park Richmond Park is a 2,360 acre park within London. It is the largest of the Royal Parks in London and Britain's second largest urban walled park after Sutton Park, Birmingham. It is close to Richmond, Ham, Kingston upon Thames, Wimbledon, Roehampton and East Sheen...	The U20 team of Premier Division team
	Galway Galway Galway or City of Galway is a city in County Galway, Republic of Ireland. It is the sixth largest and the fastest-growing city in Ireland. It is also the third largest city within the Republic and the only city in the Province of Connacht. Located on the west coast of Ireland, it sits on the...	Drom Drom Drom is a commune in the Ain department in eastern France.As well as a dairy selling comté cheese, butter, cream, fromage blanc and newly resurrected medieval fromage de CLON, , Drom boasts three 'Artisans d'art'.Christine Brochier is a master craftswoman/couturière working in fur and leather...	The U20 team of A Championship A Championship The A Championship was the third tier in the Republic of Ireland football league system. It was created in 2008 by the FAI to act as the first stop for clubs hoping to move into the League of Ireland, but cancelled at the end of the 2011 season...  team
	Dublin	Killilarden	The U20 team of Premier Division team
	Dublin	Tolka Park Tolka Park Tolka Park is an Irish football ground located in the north Dublin suburb of Drumcondra, on the northern banks of the River Tolka. It is currently the home ground of League of Ireland club Shelbourne...	The U20 team of First Division team
	Sligo Sligo Sligo is the county town of County Sligo in Ireland. The town is a borough and has a charter and a town mayor. It is sometimes referred to as a city, and sometimes as a town, and is the second largest urban area in Connacht...	Showgrounds Showgrounds The Showgrounds is stadium in Sligo, which has been home of Sligo Rovers F.C. since the club was formed in 1928.- Biography :...	The U20 team of Premier Division team
	Dublin	ALSAA	The U20 team of First Division team
	Dublin	Belfield Park Belfield Park Belfield Park was the home ground of University College Dublin A.F.C. from 1930 until 2007. It was previously a walled garden of Belfield House....	The U20 team of First Division team
	Waterford Waterford Waterford is a city in the South-East Region of Ireland. It is the oldest city in the country and fifth largest by population. Waterford City Council is the local government authority for the city and its immediate hinterland...	RSC Waterford Regional Sports Centre The Waterford Regional Sports Centre is part of Waterford Corporation's Municipal sporting facilities and home to Waterford United of the League of Ireland ....	The U20 team of First Division team
	Crossabeg Crossabeg Crossabeg or Crosabeg is a small village in County Wexford, Ireland, just north of Wexford town. It contains The Forge Storytelling House, Foley's Pub and a primary school.-Sport:... , Co Wexford	Ferrycarrig Park Ferrycarrig Park Ferrycarrig Park has been the home of League of Ireland side Wexford Youths since joining the league in 2007. The building works for the new stadium and facilities, at Newcastle, Crossabeg, have been ongoing since 2003. Currently spectator facilities consist of a clubhouse with viewing area and a...	The U20 team of First Division team

Changes during the season

withdrew from Pool 2 in August 2009 after playing 1 game.

were expelled from Pool 3 in September 2009 after failing to fulfill several fixtures.

withdrew from Pool 1 in October 2009.

All these teams had their records expunged from their respective groups.

Changes after the season

were replaced by .

joined the FAI Underage League.

withdrew from the FAI Underage League.

once again participated in the 2010 Underage League

2010 FAI Underage League

-Changes before the season: were replaced by . joined the FAI Underage League Pool 4. withdrew from the FAI Underage League. once again participated in the 2010 Underage League season, despite being expelled from the 2009 Underage League season....

 season, despite being expelled from the 2009 Underage League season.

The pools were divided differently, which means that all teams moved to a new pool for the 2010 Underage League

2010 FAI Underage League

-Changes before the season: were replaced by . joined the FAI Underage League Pool 4. withdrew from the FAI Underage League. once again participated in the 2010 Underage League season, despite being expelled from the 2009 Underage League season....

 season.

Pool 1

Pool 2

Pool 3

Pool 4

Pool 1

Pool 2

Pool 3

Pool 4

Quarter Finals

The matches were played between 31 October and 8 November 2009.

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were handed a walkover against after got expelled from the League of Ireland

League of Ireland

The League of Ireland is the national association football league of the Republic of Ireland. Founded in 1921, as a league of eight clubs, it has expanded over time into a two-tiered league of 22 clubs. It is currently split into the League of Ireland Premier Division and the League of Ireland...

.

Semi-Finals

The matches were be played between 15 and 17 November 2009.
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Final