George III Shiras (born January 1, 1859) was an American politician who served as a United States Representative from Pennsylvania in the early twentieth century. Representing Pennsylvania’s 29th congressional district, he held office as an Independent, reflecting a political stance outside the major party structures of his time. His service in Congress places him among the historical members who contributed to the legislative life of the nation during a period of significant industrial and social change.

Shiras served a single term in the U.S. House of Representatives, with his tenure beginning on November 9, 1903, and concluding on March 3, 1905. During this time, he held the role of Representative, participating in the work of Congress on behalf of his Pennsylvania constituents. Although specific committee assignments, legislative initiatives, and post-congressional activities are not detailed in the available record, his status as an Independent Representative for Pennsylvania’s 29th district from 1903 to 1905 marks his principal contribution to public life.