Theodore "Jim" Blackburn (born 2 July 1943) is an American politician who served as a Republican member of the Wyoming House of Representatives representing District 42 from January 5, 2015 to January 2, 2023.
Blackburn challenged incumbent Republican Representative Pete Illoway in the Republican primary and lost, 58% to 42%.
After incumbent Republican Representative Lynn Hutchings retired to run for the Wyoming Senate, Blackburn announced his candidacy. He defeated Tom Jones in the Republican primary with 55% of the vote. Blackburn defeated Democrat Gary Datus in the general election, 66% to 34%.
Blackburn ran unopposed for the Republican nomination, and defeated Democrat Juliet Daniels in the general election with 68.3% of the vote.