The Seventy-Third Oregon Legislative Assembly was the Oregon Legislative Assembly (OLA)'s period from 2005 to 2006. There was a regular session in 2005, and a one-day special session on April 20, 2006.

Walter Kurt Schrader is an American politician and veterinarian who served as the U.S. representative for Oregon's 5th congressional district from 2009 to 2023. His district covered most of Oregon's central coast, plus Salem, and many of Portland's southern suburbs, and a sliver of Portland itself. A member of the Democratic Party, Schrader served in both houses of the Oregon Legislative Assembly from 1997 to 2008.