This is a list of brigades of the Irish Republican Army, formed or active between 1916 and 1922, which were involved in activities undertaken by the Irish Republican Army.
Munster County Clare Period Brigade Division Commandant 1916–1917 East Clare Brigade Michael Brennan 1916–1917 Mid Clare Brigade Sean McNamara 1916–1917 North Clare Brigade H. J. Hunt 1916–1917 West Clare Brigade E. Fennell 1917–1918 Clare Brigade Patrick Brennan 1918–1922 East Clare Brigade 1st Western Division Michael Brennan 1918–1922 Mid Clare Brigade 1st Western Frank Barrett 1918–1922 West Clare Brigade 1st Western Art O'Donnell
County Cork Period Brigade Division Commandant 1914-1919 Cork Volunteers1st Southern Division Tomás Mac Curtain 1919-1920 1st Cork Brigade 1st Southern DivisionTomás Mac Curtain 1920 1st Cork Brigade 1st Southern Division Terence MacSwiney 1920-1922 1st Cork Brigade 1st Southern Division Sean O'Hegarty 1922 (acting) 1st Cork Brigade 1st Southern Division Mick Leahy 1922-? 1st Cork Brigade 1st Southern Division Herbert ‘Sean’ Mitchell 1919-1921 2nd Cork Brigade (North Cork Brigade) 1st Southern Division Liam Lynch 1921 2nd Cork Brigade (North Cork Brigade) 1st Southern Division Sean Moylan 1921 2nd Cork Brigade (North Cork Brigade) 1st Southern Division George Power 1919-1920 3rd Cork Brigade (West Cork Brigade) 1st Southern Division Tom Hales 1920-1921 3rd Cork Brigade (West Cork Brigade) 1st Southern Division Charlie Hurley 1921-22 3rd Cork Brigade (West Cork Brigade) 1st Southern Division Tom Barry 1921 4th Cork Brigade 1st Southern Division Paddy O'Brien 1921-1922 4th Cork Brigade 1st Southern Division Sean Moylan 1921-1922 5th Cork Brigade 1st Southern Division Gibbs Ross
County Kerry Period Brigade Division Commandant 1914-1917 Kerry Brigade 1st Southern DivisionAustin Stack 1917-1919 1st Kerry Brigade 1st Southern Division Austin Stack 1919–1921 1st Kerry Brigade 1st Southern DivisionPatrick Cahill19211st Kerry Brigade1st Southern DivisionAndrew Cooney1921-19221st Kerry Brigade1st Southern DivisionHumphrey Murphy -1921 2nd Kerry Brigade 1st Southern Division Dan Mahony 1921 2nd Kerry Brigade 1st Southern Division Humphrey Murphy 1922 2nd Kerry Brigade 1st Southern Division John Joe Rice
County Limerick County Tipperary Period Brigade Division Commandant 1918-1922 3rd Tipperary Brigade 2nd southern division Séumas Robinson
County Waterford
Leinster
County Carlow County Dublin County Kildare County Kilkenny County Laois County Longford
Period Brigade Division Commandant 1919-1922 Longford Brigade 1st Midlands Division Thomas Reddington
County Louth
County Offaly Period Brigade Division Commandant 1920-1922 Offaly Brigade 1st Eastern Division Barry Byrne
County Westmeath County Wexford County Wicklow
Ulster County Antrim Period Brigade Division Commandant 1916–1922 Belfast Brigade 3rd Northern Sean Cusack & Joe McKelvey
County Armagh County Cavan Period Brigade Division Commandant 1916–1921 Cavan Brigade Ulster Pat Woods 1921–1922 East Cavan Brigade 5th Northern Peadar McMahon, Seán Gallagher & Séamus McGovern 1921–1922 West Cavan Brigade 6th Northern Éamonn McGovern, Michael MacManus & Seán Dolan
County Donegal Period Brigade Division Commandant –1922 West Donegal Brigade 1st Northern Division –1922 North East Donegal Brigade 1st Northern –1922 South West Donegal Brigade 1st Northern –1922 South East Donegal Brigade 1st Northern
County Down County Fermanagh No.1 Batt. Enniskillen A. Boho B. Derrygonnelly C. Enniskillen D. Monea E. Rosinuremore
No.2 Batt. Belcoo A. Belcoo B. Doobally C. Glan Lower D. Glan Upper E. Killinagh F. Mullaghdun
County Londonderry County Monaghan Period Brigade Division Commandant 1916–1922 Monaghan Brigade 5th Northern Division Eoin O'Duffy
County Tyrone
Connacht County Galway Period Brigade Division Commandant 1916–1920 Galway Brigade 1920–1922 South East Galway Brigade 1st Western Joeseph Stanford 1920–1922 North Galway Brigade 2nd Western Division 1920–1922 West Galway Brigade 4th Western Division Peter Joe McDonnell
County Leitrim County Mayo Period Brigade Division Commandant 1 West Mayo Brigade 4th Western Division Ned Mohan 2 North Mayo Brigade 4th Western Division C. Mackin; Séamus Kilcullen 1922- 5 North West Mayo 4th Western Division Anthony Farrell East Mayo 3rd Western Division
County Roscommon County Sligo
Other Period Brigade Division Commandant 1st Scottish Brigade 1st Scottish 2nd Scottish Brigade 1st Scottish Liverpool Battalion London Battalion Newcastle-on-Tyne Battalion Q Company GHQ
Bibliography
References
External links Bureau of Military History, 1913-1921 at Defence Forces Order of Battle of the Irish Republican Army, June 1922 by Paul V. Walsh