Nina Hudson Turner (née Hudson; born December 7, 1967) is an American politician and television personality. A member of the Democratic Party, she was a Cleveland City Council member from 2006 to 2008 and a member of the Ohio Senate from 2008 until 2014. Turner was the Democratic nominee for Ohio Secretary of State in 2014, but lost in the general election against incumbent Jon Husted, receiving 35.5 percent of the vote. A self-described democratic socialist, her politics have been variously described as progressive, left-wing, or far-left.

Turner supported Bernie Sanders in his 2016 presidential campaign, and became president of the Sanders-affiliated group Our Revolution in 2017. She served as a national co-chair of Sanders's 2020 presidential campaign. Turner ran in the Democratic primary for 2021 special election for Ohio's 11th congressional district, and conceded the race after losing to Shontel Brown by a margin of 5.66% of the vote. Turner unsuccessfully challenged Brown for the seat again in 2022, garnering 33.5% of the vote to Brown's 66.5% in the Democratic primary.