Valentin Amrhein (born 1 April 1971 in Lübeck) is a German-Swiss professor of zoology at the University of Basel and science journalist. Together with Sander Greenland and others, he is a critic of significance thresholds in science and he draws attention to misunderstandings of p-values. He is author of a comment in the journal Nature on statistical significance that had the highest online attention score of all research outputs ever screened by Altmetric.