The Diplomacy Competition is an online Model United Nations event, run by UN Youth New Zealand. Open to teams of up to four from secondary schools across the country, the competition runs in four distinct month-long rounds over the course of the year.

In each round teams are assigned a country to represent and placed in a committee of other teams. They are given a topic with a briefing paper and a draft resolution to discuss and amend. After a period of discussion, the amendments are voted on and a final resolution is released. Teams must then submit a final vote on the resolution, and a position paper explaining why they voted as they did.