Root Sports Northwest is a regional American sports TV channel. It is part of the AT&T SportsNet network and also affiliated to Fox Sports Networks. The English-language channel is owned by Seattle Mariners and WarnerMedia. The channel was originally launched as Northwest Cable Sports in 1989. It is headquartered in the city of Bellevue, Washington.

The channel focuses on regional broadcasts of sporting events in the Pacific Northwest, with special focus on teams based in Seattle and Portland.

Root Sports Northwest is available throughout Washington, Oregon, Idaho, Montana, and Alaska via cable, and nationwide via satellite.

Viewers can find Root Sports Northwest through following TV providers:

• DirecTV: Channel 687 Main (SD/HD), Channel 688 Overflow feed (SD), 688-1 Overflow feed (HD)
• Dish Network: Channel 426
• Xfinity (Seattle): Channel 30 (SD), Channel 627 (HD)
• Xfinity (Portland): Channel 34 (SD), Channel 734 (HD)

Root Sports Northwest’s content may be streamed online via the authenticated OTT services of the TV providers that offer the network. Furthermore, the network maintains mobile applications for Android and iOS smartphones and tablets.

In the past, Root Sports Northwest has held regional broadcast rights to the majority of games from MLB side Seattle Mariners. It has also been the cable home of NFL side Seattle Seahawks and has been broadcasting Utah Jazz and Vegas Golden Knights games in Idaho and Montana states. Furthermore, the channel focuses on college and high school sports from the region.

Root Sports Northwest has also served soccer fans with matches of Major League Soccer side Portland Timbers.