The likes of Aaron Hughes, Jonny Evans and Chris Baird will guide the side in its first major tournament in 30 years.
Will Grigg has been chosen as Northern Ireland's fourth striker for the European Championship, a day after scoring his first international goal.
Grigg scored 25 goals for Wigan in the team's title-winning campaign in England's third tier this season. He opened his account for Northern Ireland in the 3-0 win over Belarus on Friday.
Northern Ireland is competing in its first major tournament in 30 years. Its 23-man squad was announced at the Titanic Belfast museum on Saturday.
Aaron Hughes, a 36-year-old defender, will arrive in France with a century of international appearances should he feature in a friendly against Slovakia next week.
Here is Northern Ireland's squad in full:
GOALKEEPERS: Roy Carroll (Notts County), Michael McGovern (Hamilton), Alan Mannus (St. Johnstone)
DEFENDERS: Craig Cathcart (Watford), Jonny Evans (West Brom), Gareth McAuley (West Brom), Luke McCullough (Doncaster Rovers), Aaron Hughes (Melbourne City), Lee Hodson (MK Dons), Chris Baird (Fulham), Paddy McNair (Manchester United)
MIDFIELDERS: Steven Davis (Southampton), Oliver Norwood (Reading), Corry Evans (Blackburn Rovers), Jamie Ward (Nottingham Forest), Stuart Dallas (Leeds United), Niall McGinn (Aberdeen), Shane Ferguson (Millwall)
FORWARDS: Will Grigg (Wigan Athletic), Kyle Lafferty (Norwich City), Conor Washington (Queens Park Rangers), Josh Magennis (Kilmarnock)