Wilcoxon is a surname, and may refer to: Charles Wilcoxon, drum educator Henry Wilcoxon, an actor Frank Wilcoxon, chemist and statistician, inventor of two non-parametric tests for statistical significance: The Wilcoxon signed-rank test (also known as the Wilcoxon T test) The Wilcoxon rank-sum test (also known as the Mann–Whitney U test). See also Wilcox (surname)