The party leader has included five first time TDs in her shadow cabinet.
A midlands Sinn Féin TD has been dropped from the party's front bench.
Laois-Offaly deputy Brian Stanley was the spokesperson on Agriculture but instead Mary Lou McDonald has opted to appoint Matt Carthy to role.
The Party Leader has included five first time TDs in her shadow cabinet.
Roscommon-Galway TD Claire Kerrane has taken up the role as spokesperson on Social Protection, Community and Rural Development and the Islands.
Longford-Westmeath TD Sorca Clarake, Meath-West's Johnny Guirke and Kildare-South deputy Patricia Ryan have also missed out.
Ms. McDonald says "the new government Ministers will have to be on their toes and on top of their briefs because they will be matched by a very energetic, very determined Sinn Féin leading the opposition".
Party Leader, shadowing An Taoiseach - Mary Lou McDonald
Deputy Party Leader, shadowing An Tánaiste & Spokesperson on Finance - Pearse Doherty
Spokesperson on Public Expenditure and Reform - Mairéad Farrell
Spokesperson on Enterprise, Trade and Employment - Louise O'Reilly
Spokesperson on Health - David Cullinane
Spokesperson on Housing, Local Government and Heritage - Eoin Ó Broin
Spokesperson on Agriculture and the Marine - Matt Carthy
Spokesperson on Justice - Martin Kenny
Spokesperson on Social Protection, Community and Rural Development and the Islands - Claire Kerrane
Spokesperson on Climate Action, Communications Networks and Transport - Darren O'Rourke
Spokesperson on Media, Tourism, Art, Culture and Sports- Imelda Munster
Spokesperson on Children, Disability, Equality and Integration - Kathleen Funchion
Spokesperson on Education - Donnchadh Ó Laoghaire
Spokesperson on Higher Education, Innovation and Science - Rose Conway-Walsh
Spokesperson on Foreign Affairs & Defence - John Brady
Also attending frontbench meetings will be:
Chief Whip - Pádraig Mac Lochlainn