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| Designation | Symbol / Emblem |
| Washington State Arboretum | Washington Park Arboretum – University of Washington, Seattle |
| Washington State Bird | Willow Goldfinch (Carduelis tristis) |
| Washington State Dance | Square Dance |
| Washington State Fish | Steelhead Trout (Salmo gairdneri) |
| Washington State Flag | Flag of Washington |
| Washington State Flower | Coast Rhododendron (Rhododendron macrophyllum) |
| Washington State Folk Song | Roll On Columbia, Roll On by Woody Guthrie |
| Washington State Fossil | Columbian Mammoth (Mammuthus columbi) |
| Washington State Fruit | Apple |
| Washington State Gem | Petrified Wood |
| Washington State Grass | Bluebunch Wheatgrass (Agropyron spicatum) |
| Washington State Insect | Green Darner Dragonfly (Anax junius Drury) |
| Marine Mammal | Orca (Orcinus orca) Effective June 24, 2005. |
| Washington State Ship | President Washington |
| Washington State Song | Washington, My Home written by Helen Davis, arranged by Stuart Churchill |
| Washington State Tartan | Asett w/green background and blue, white, yellow, red and black stripes. |
| Washington State Tree | Western Hemlock (Tsuga heterophylla) |