Mary Wendy Roberts (born December 19, 1944) is an American politician from the U.S. state of Oregon. At 27, Roberts was the youngest woman ever elected to the Oregon Legislative Assembly. She was elected to the Oregon State Senate in 1974. In 1978, at 33, she became the first woman Democrat to win Oregon statewide office, serving for 16 years as Oregon Commissioner of Labor, the chief executive of the state agency that enforces the state civil rights and wage-hour laws, and oversees apprenticeship programs.