LaTonya Johnson is an American activist and Democratic politician from Milwaukee, Wisconsin. She is a member of the Wisconsin Senate, representing the 6th Senate district since 2017. Before her election to the Senate, she served two terms in the Wisconsin State Assembly, and was president of AFSCME Local 502.

The Wisconsin Senate is the upper house of the Wisconsin State Legislature. Together with the larger Wisconsin State Assembly they constitute the legislative branch of the state of Wisconsin. The powers of the Wisconsin Senate are modeled after those of the U.S. Senate.