Timothy John "Tim" Ryan (born July 16, 1973) is an American politician. He is the U.S. Representative for Ohio's 13th congressional district, serving since 2003. The district, numbered as the 17th district from 2003 to 2013, takes in a large swath of northeast Ohio, from Youngstown to Akron. He is a member of the Democratic Party. He previously served in the Ohio Senate.

Ryan was seen as a possible presidential candidate in 2020 following the 2018 midterms. On April 4, 2019, Ryan announced his candidacy for president. On October 24, 2019 Ryan dropped out of the election citing low polling numbers and lack of qualifications for the debates.

In February 2021, Ryan said that he was planning to run for United States Senator in Ohio in the 2022 Senate race, replacing retiring Republican Senator Rob Portman. He official announced his candidacy in late April 2021. In May 2022, Ryan won the Democratic nomination for the Senate.