Gordon Llewellyn Allott (born January 2, 1907) was a Republican senator from the state of Colorado who served in the United States Senate for three consecutive terms. Representing Colorado at-large rather than a specific district, he held office from January 5, 1955, until January 3, 1973. During this period, he was a member of the Republican Party and is recognized as a historical member of Congress.

Allott’s tenure in the Senate spanned 18 years, marking him as a significant mid-20th-century political figure for Colorado. Serving continuously from 1955 to 1973, he participated in the legislative life of the nation during a period of substantial political, social, and economic change. Although specific committee assignments, offices, or legislative initiatives are not detailed in the available record, his long service underscores his sustained role in representing Colorado’s interests at the federal level.