Nannette L. Whaley (/ˈweɪli/; born January 23, 1976) is an American politician who served as the 56th mayor of Dayton, Ohio from 2014 to 2022. A member of the Democratic Party, she was first elected to the mayorship in November 2013, after she served on the city commission for two terms. Whaley presided over the United States Conference of Mayors from 2021 to 2022. She was the Democratic nominee in the 2022 Ohio gubernatorial election, losing to incumbent Mike DeWine.