The 2016 elections for the Oregon Legislative Assembly determined the composition of both houses for the 79th Oregon Legislative Assembly.

The Republican and Democratic parties held primary elections on May 17, 2016 with general elections on November 8.

The Democratic Party maintained its 35-25 advantage in the Oregon House of Representatives while losing one seat in the Oregon State Senate to bring their advantage to 17-13 over the Republicans.

In the previous session, the Democrats held an 18-12 majority over the Republicans.

The Democrats expanded their 34-26 advantage to 35-25 in the 2014 election.