Claud Dennis McKinsey (March 5, 1940 – June 23, 2009 in Ohio) was an American Atheist and author of works on the subject of Biblical inerrancy from a critical perspective, most notably The Encyclopedia of Biblical Errancy (1995) and Biblical Errancy: A Reference Guide (2000). He also wrote and published a monthly periodical known as Biblical Errancy from 1982 to 1999.
McKinsey obtained a bachelor's degree in philosophy in 1962 and a master's degree in the social sciences in 1964 from the University of Indiana. He taught social studies full-time at the secondary level for ten years. He was a community college instructor in sociology and a secondary guidance counselor for the London City School District. For brief periods he was a civil rights investigator, a truant officer, and a government researcher.