Leo Groarke (born 1953) is a Canadian philosopher, known for his contributions to argumentation theory and informal logic.
Groarke has authored and edited a number of books, articles, and anthologies.
He earned his PhD in philosophy in 1982 and was a professor of philosophy at Wilfrid Laurier University, also holding several administrative positions.
[2] Groarke's publications have concerned Ancient Greek philosophy, the history of ideas, and argumentation theory.
[1] He is the author of the Stanford Encyclopedia of Philosophy entry for Informal Logic, and also wrote the 2008 edition of the Stanford Encyclopedia entry for Ancient Skepticism.