Bird Segle McGuire (October 13, 1865 – November 9, 1930) was an American politician, a Delegate and the last U.S. Representative from Oklahoma Territory.

He was appointed assistant United States Attorney for Oklahoma Territory in 1897, in which capacity he served until after his nomination for Congress.

Although Congress was closely divided, the Republican president Theodore Roosevelt was so opposed to the two-state solution, he promised to veto any legislation that came to his desk with that option.

Historian Thoburn wrote that McGuire proved so capable in moving the Democrats to back down on their two-state position that Congress passed the Oklahoma Enabling Act which the President signed, even though grudgingly.

[4] He was then elected as a Representative to the Sixtieth and to the three succeeding Congresses and served from November 16, 1907, when Oklahoma was admitted as a State into the Union, until March 3, 1915.

When his term expired in 1915, he moved his residence from Pawnee to Tulsa, where he resumed his law practice until his death.