Thomas Quick (born Sture Bergwall 1950 in Korsnäs , Sweden) is an alleged serial killer, with over 30 murder confessions (although only eight convictions).

According to his own book, Kvarblivelse, he was abused by his father as young, something which his brother, Sten-Ove Bergwall, denies in the book Min bror Thomas Quick: en berättelse om det ofattbara ("My brother Thomas Quick: A story about the unfathomable").

He was arrested in 1990, after attempting to rob a bank outside Falun, Sweden. During his years in prison, he started to confess to numerous murders, and he was convicted for eight of them.

Critics of the confessions and the trials claim that Thomas Quick never murdered anyone, but that he is a compulsive liar. In response to these accusations, Quick himself wrote an article for the Swedish newspaper Dagens Nyheter in 2001, where he said that he refused to further co-operate with the authorities concerning all open murder investigations.