Northern has qualified for the last 16 of the European Championship after finishing as one of the best third-placed teams.
Northern Ireland – in their first appearance at a Euros and first major tournament since 1986 – will now meet either Wales or France for a place in the quarter-finals.
Michael O’Neill’s side lost 1-0 to Germany on Tuesday but finished third in Group C, with their tally of three points enough to see them advance on goal difference.
Turkey’s 2-0 victory against the Czech Republic ensured that Northern Ireland will be one of the four best third-placed teams who will go on to join the group winners and runners-up in the knockout stages.
A tie against Wales would take place on Saturday (kick-off 17:00 BST) in Paris, or they will play France in Lyon on Sunday (14:00).
The Republic of Ireland will qualify for the last 16 if they beat Italy on Wednesday (20:00 BST).
Italy, who are already through to the next round for a last-16 meeting with holders Spain, are set to make “between seven and nine” changes for the game, according to boss Antonio Conte.