Alex A. Deccio (October 28, 1921 – October 25, 2011) was an American politician.
Born in Walla Walla, Washington, Deccio served in the United States Army Air Forces during World War II. He owned an insurance business in Yakima, Washington. Deccio served in the Washington House of Representatives 1975-1980 and then in the Washington State Senate. He also served as Yakima County, Washington commissioner.
On February 22, 1946, Deccio married Lucille Pauline Dexter (1922-2017). They have eight children. Deccio and his family live in Yakima, Washington.
On October 25, 2011, Deccio died in Yakima, Washington. He was 89 years old.