Barbara Allen (born February 8, 1961) is a Republican, Kansas state senator from the 8th District. She is from Overland Park, Kansas, and is an attorney. Allen graduated with a Bachelor of Science from Mount Vernon College for Women (now the George Washington University Mount Vernon campus) and a degree from the University of Missouri–Kansas City Law School. She was first elected to the Kansas House of Representatives, in 1988, and then to the Kansas Senate, in 2000. She is a patron of the Kansas Children's Cabinet.