Irish League side Linfield have been drawn against B36 Torshavn of the Faroe Islands in the first preliminary round of the Champions League.
If David Jeffrey's men get through they will face Cypriot team AEL Limassol.
Belfast club Linfield won their 51st Irish Premiership title by a massive 14-point margin last season.
In the Europa League, Crusaders take on Norway's Rosenborg, Cliftonville meet Kalmar FF of Sweden and Portadown are up against FK Shkëndija of Macedonia.
Last season B36 won the Faroe Islands league title for a ninth time and this will be their fifth Champions League campaign.
Cliftonville's opponents Kalmar were eighth in the Swedish league last season but qualified by reaching the final of the Svenska Cupen.
Crusaders have announced their home leg against Rosenborg will be on Thursday 5 July with the return game in Norway a week later.
Rosenborg faced Northern Ireland opposition two years ago when they beat Linfield 2-0 on aggregate in the Champions League.
Portadown will face Shkëndija away on Tuesday 3 July, with the home leg on Tuesday 10 July at Shamrock Park.