The Rose Garden, commonly known as the Rose Garden Arena, is the primary indoor sports arena in Portland, Oregon, United States. It is suitable for large indoor events of all sorts, including basketball, ice hockey, rodeos, circuses, conventions, ice shows, concerts, and dramatic productions. The arena has a capacity of 20,630 spectators when configured for basketball; it holds smaller crowds when configured for other events. The arena is equipped with state-of-the-art acoustics and other amenities.

The arena's current primary tenant is the Portland Trail Blazers of the NBA. Both the Trail Blazers and the Rose Garden are ultimately owned by Microsoft co-founder Paul Allen, who also owns the Seattle Seahawks of the National Football League. The Trail Blazers have a lease agreement with the Rose Garden which runs through 2025.