Willis David "Bill" Gradison Jr. (born December 28, 1928) is an American politician, who served for almost two decades in the U.S. House of Representatives.

Gradison, a Jewish Republican, was born in Cincinnati, Ohio and received a bachelor of arts degree from Yale University in 1949, a master's degree in business administration from Harvard University's Graduate School of Business Administration in 1951, and a doctor of commercial science degree from Harvard in 1954.

Gradison worked as an investment broker and then served as assistant to the undersecretary of the treasury (1953-1955), and assistant to the secretary of health, education, and welfare (1955-1957).

He was then elected to the Cincinnati city council, on which he served from 1961 to 1974. This service included a term as mayor of Cincinnati in 1971 (a position which rotates among council members). Gradison was first elected to the U.S. House of Representatives in 1974 and began serving in 1975 (94th Congress). He served until 1993, when he resigned to accept the position of president of the Health Insurance Association of America.

The vacancy in the House of Representatives created by Gradison's resignation was filled by a special election, which was won by fellow Republican U.S. Rep. Robert J. Portman.

See also:

• Election Results, U.S. Representative from Ohio, 1st District
• Election Results, U.S. Representative from Ohio, 2nd District
• List of United States Representatives from Ohio
• List of Mayors of Cincinnati, Ohio