Eldon Quinn Johnson (August 16, 1930 – September 4, 2015) was an American politician who was a Republican member of the Oregon House of Representatives. He was appointed in September 1977 to fill the House District 51 seat vacated by Brad Morris. He was forced out of the Oregon Legislature by terms limits, later ruled to be unconstitutional by the Oregon Supreme Court. His 11th and final term in office ended January 10, 1999.