who was the referee on the last usa vs australia

The referee for the last USA vs Australia match was Felix Zwayer of Germany.

Match context

The match took place at Lumen Field in Seattle during the 2026 FIFA World Cup, and USA won 2-0. Zwayer also drew attention after briefly cramping late in the game, but he finished the match.

Quick note

If you meant a different USA vs Australia match in another sport or year, the referee/official would be different.