Dundalk were drawn to face Slovenian champions NJ Celje in the first round of the Champions League qualifiers.
Vinny Perth's men will take on their unfamiliar opponents in a one-legged clash which looks likely to be played at a neutral venue.
The Lilywhites were drawn away to the Slovenians but with the country not on Ireland's travel green list, the match could be held in Hungary or Greece.
The date, venue and kick-off time have yet to be announced but the clash will be held on either August 18 or 19.
Elsewhere in the draw, NIFL Premiership champions Linfield face a tricky trip to face Polish side Legia Warsaw if they beat Kosovo's Drita in their preliminary round clash tomorrow.
Celtic will take on KR Reykjavik, a familiar foe for the Hoops, who beat the Icelandic champions 5-0 on aggregate in a 2014 qualifier.
The draw for the second qualifying round will take place on Monday. The second and third qualifying rounds will also be one-legged ties and the play-off round will be two-legged.
Full Draw
Ferencváros (HUN) vs Djurgården (SWE)
Celtic (SCO) vs KR Reykjavík (ISL)
Legia Warszawa (POL) vs Drita (KOS)/Linfield (NIR)
Sheriff (MDA) vs Fola Esch (LUX)
Connah's Quay (WAL) vs Sarajevo (BIH)
Crvena zvezda (SRB) vs Europa (GIB)
Budućnost Podgorica (MNE) vs Ludogorets (BUL)
Ararat-Armenia (ARM) vs Omonia (CYP)
Floriana (MLT) vs CFR Cluj (ROU)
Maccabi Tel-Aviv (ISR) vs Riga (LVA)
Qarabağ (AZE) vs Sileks (MKD)
Dinamo Tbilisi (GEO) vs Tirana (ALB)
Dynamo Brest (BLR) vs Astana (KAZ)
Molde (NOR) vs KuPS (FIN)
Flora Tallinn (EST) vs Sūduva (LTU)
Celje (SVN) vs Dundalk (IRL)
KÍ (FRO) vs Slovan Bratislava (SVK)
