Alaska Senate district O

Alaska's O
State Senate district

Senator
  Mike Shower
RWasilla
since 2023
Population37,516

Alaska Senate district O is one of 20 districts of the Alaska Senate. It has been represented by Republican Mike Shower since 2023. Shower previously represented District E from 2018−2023. District O is located in the Mat-Su Valley and encompasses the entirety of Alaska's 29th House of Representatives district and 30th House of Representatives district, including Valdez, Houston, and Big Lake.

From 2013 to 2022, the district covered a portion of Alaska south of Anchorage - this area is now encompassed by district D.