Having broken into the Whites' first team during the 2018/19 campaign, the 18-year-old featured in last year's UEFA European Under-17 Championships and has now been included in his national side's senior set-up.
Speaking about Connell's call-up meanwhile, Republic of Ireland manager Mick McCarthy said: "Luca deserves this opportunity. With midfielders Conor Hourihane, Glenn Whelan and Josh Cullen all on play-off duty with their clubs in the coming weeks, this is the perfect chance to get Luca into the squad.
"He has had a fine season with Bolton playing 15 times in total and has impressed so many people."
Connell's progress with the Republic of Ireland will be documented in bwfc.co.uk
's International Watch series over the coming weeks.
Republic of Ireland Squad
Goalkeepers: Darren Randolph (Middlesbrough), Mark Travers (Bournemouth), Sean McDermott (Kristiansund BK)
Defenders: Seamus Coleman (Everton), Matt Doherty (Wolverhampton Wanderers), John Egan (Sheffield United), Kevin Long (Burnley), Richard Keogh (Derby County), Shane Duffy (Brighton & Hove Albion), Enda Stevens (Sheffield United), Greg Cunningham (Cardiff City)
Midfielders: Alan Judge (Ipswich Town), Alan Browne (Preston North End), Glenn Whelan (Aston Villa), Jeff Hendrick (Burnley), Conor Hourihane (Aston Villa), Luca Connell (Bolton Wanderers), Josh Cullen (Charlton Athletic*), Robbie Brady (Burnley), Callum O'Dowda (Bristol City), James McClean (Stoke City), Ronan Curtis (Portsmouth)
Forwards: David McGoldrick (Sheffield United), Shane Long (Southampton), Sean Maguire (Preston North End), Scott Hogan (Aston Villa), Callum Robinson (Preston North End)