The 2022 Washington House of Representatives elections took place as part of the biennial United States elections on November 8, 2022. Washington state voters elected state representatives in all 98 seats of the House, electing 2 state representatives in each of the 49 Washington state legislative districts. State representatives serve two-year terms in the Washington House of Representatives.

The Washington House of Representatives is the lower house of the Washington State Legislature, and along with the Washington State Senate makes up the legislature of the U.S. state of Washington. It is composed of 98 Representatives from 49 districts, each of which elects one Senator and two members of the House. They are elected to separate positions with the top-two primary system. All members of the House are elected to a two-year term without term limits. The House meets at the State Capitol in Olympia.