Plaza Blocks
| Lownsdale Square & Chapman Square | |
|---|---|
| Lownsdale Square | |
| Location | Portland, Oregon, United States | 
| Coordinates | 45°30′57″N 122°40′39″W / 45.515721°N 122.677485°W | 
The Plaza Blocks, two courthouse squares known as Chapman Square and Lownsdale Square, are located in downtown Portland, Oregon, United States. The blocks, as well as the adjacent Terry Schrunk Plaza, are surrounded by multiple government buildings including City Hall, the Green - Wyatt Federal Building, the Portland Building, the Multnomah County Justice Center, the Hatfield United States Courthouse, and the old Multnomah County Courthouse.