They'll face one nation they've never played before competitively.
The draw for next year's Nations League is taking place in Switzerland.
The Republic of Ireland will face Scotland, Ukraine and Armenia in League B.
Speaking to UEFA on the draw, Ireland manager Stephen Kenny believes it is an exciting group where each team can beat each other.
"My first impression is that it is a really competitive group," said Kenny.
"Ukraine got to the quarter-finals of the EUROS, Scotland have won their last six matches and Armenia have really improved, finishing ahead of Iceland recently in their World Cup qualifying group.
"All of the teams are capable of taking points off each other so it is very exciting from our point of view.
"Obviously, we're third seeds in the group so not many people would expect us to win the group but that will certainly be our ambition."
Northern Ireland were drawn in Group 2 of League C alongside Greece, Kosovo, and either Cyprus or Estonia.
England, Germany, Italy and Hungary have all been drawn in the same group in League A.