Diane Dietz

Deputy Commissioner

Diane Dietz is deputy commissioner for the Big Ten Conference, returning to the position in June 2023. Dietz is a member of the Big Ten Conference senior leadership team and is embarking on her 14th year at the conference.

In her current role as deputy commissioner, Dietz reports to Commissioner Tony Petitti and is charged with development and implementation of strategic initiatives that impact the conference and intercollegiate athletics, in addition to providing support for business and operational communications.

Dietz has served in numerous vital roles for the conference during her tenure including senior strategic advisor to the commissioner (2021-22), deputy commissioner (2014-21) and chief communications officer (2010-13).

Prior to joining the conference office in 2010, Dietz served as chief marketing and community relations officer at Cranbrook Educational Community in Bloomfield Hills, Mich., and as senior vice president for the Comcast Foundation and senior director of public affairs at Comcast Corporation in Philadelphia, Pa. Prior to that she practiced law for eight years in Bloomfield Hills, Mich.

A former Big Ten women’s basketball player, Dietz was inducted into the University of Michigan’s Hall of Honor and set the Wolverines' career scoring record during her time in Ann Arbor and remains No. 4 on the program’s all-time scoring list. She graduated with distinction from the University of Michigan with a Bachelor of General Studies degree in 1982 before earning her juris doctorate cum laude from the Thomas M. Cooley Law School in 1985.

Last updated: 8/16/2023