
Nigeria started the game as group toppers and only needed to avoid defeat to advance to the last 16, no matter the result in the other group game between Australia and Canada in Melbourne.
Shots on goal were in short supply but Nigeria had the best opportunity to score in the second half when Uchenna Kanu saw her header saved by goalkeeper Courtney Brosnan, who made several timely interventions to give Ireland their first clean sheet.
Nigeria will have to wait until tomorrow to discover who their last 16 opponents will be with Group D yet to be decided. Debutants Ireland was already eliminated after two defeats but went home having earned their first-ever point at the World Cup.