Andreas Urs Sommer (born 14 July 1972) is a German philosopher of Swiss origin.
His historical studies center on the philosophy of Enlightenment and Nietzsche, but they also deal with Kant, Max Weber, Pierre Bayle, Jonathan Edwards, and others.
Andreas Urs Sommer studied philosophy, theology and German literature in Basel, Göttingen and Freiburg.
He obtained his doctorate at Basel University in 1998, and received his Habilitation in Greifswald in 2004.
In 2008 Sommer became responsible for the "Nietzsche-Kommentar" of the Heidelberg Academy of Sciences.