The decision comes only weeks after qualifying events in Africa, the Americas, Europe and Oceania were cancelled, with the remaining spots determined via world ranking points.
The World Youth Cup was scheduled to be held in Suva in June, with Fiji, Samoa, Tonga and the Cook Islands set to represent the Pacific.
But the International Netball Federation said, given the ongoing uncertainty because of the Covid-19 pandemic, including the risk to people's health, restrictions on global travel and quarantine requirements, the decision was made to postpone the event.
