William Robert "Red" Alford (July 21, 1937 – May 29, 2003) was an American mathematician and lawyer, who was best known for his work in the fields of topology and number theory.

After graduating high school, Alford became a member of the United States Air Force, and earned his Bachelor of Science in mathematics and physics from The Citadel (1959).

[3] In 1994, in a paper with Andrew Granville and Carl Pomerance, he proved the infinitude of Carmichael numbers[4] based on a conjecture given by Paul Erdős.

MathSciNet credits Alford with eleven publications, of which two were in the prestigious Annals of Mathematics - the Carmichael numbers paper, and a 1970 paper in knot theory.

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