Thomas from the kindred Nánabeszter (Hungarian: Nánabeszter nembeli Tamás; died around 1323) was a Hungarian nobleman and soldier at the turn of the 13th and 14th centuries, who possessed several domains along the river Danube in Central Hungary, surrounding the capital Buda at that time. Being the last member of the Nánabeszter clan, he was also known as Thomas Berki (Hungarian: Berki Tamás) after his main residence.