The Buddies will prepare for the 2022/23 season with a training camp and two pre-season friendlies in Belfast.
Stephen Robinson's men will head over to the manager's native Northern Ireland for a training camp when they return from their summer break.
They will then face Crusaders at the Seaview Stadium on Monday June, 27, the side who finished fourth in the NIFL Premiership table last season. Kick-off is 6.30pm.
Following that clash the Saints will take on league champions Linfield at Windsor Park, the home of the Northern Ireland football team, on Saturday July 2. Kick-off for that clash is due to be 1.30pm.
Linfield are using the game as preparation for their upcoming Champions League first round qualifier, against an as yet undrawn opponent.
And St Mirren supporters will be able to cross the Irish sea and back their side, with ticket details set to be released shortly.
A St Mirren spokesperson confirmed: "Fans will be able to attend both matches. Details on how to get tickets for each match will be revealed soon."
