| Team Name | Nickname | |
| Seattle Mariners | Mariners | |
| University of Washington Huskies | Huskies |
| HS Name | Nickname | |
| Ballard | Beavers | |
| Bishop Blanchet | Braves | |
| Broadway | - | |
| Chief Sealth | Seahawks | |
| Evergreen | Wolverines | |
| Franklin | Quakers | |
| Garfield | Bulldogs | |
| Grover Cleveland | Eagles | |
| Ingraham | Rams | |
| Kennedy | ||
| Kings | Knights | |
| Lincoln | Lynx | |
| Nathan Hale | Raiders | |
| O'Dea | Fighting Irish | |
| Queen Anne | Grizzlies | |
| Rainier Beach | Vikings | |
| Roosevelt | Rough Riders | |
| Seattle Academy of Art and Science | Cardinals | |
| Seattle Christian | Warriors | |
| Seattle Prep | Panthers | |
| West Seattle | Wildcats |