Petr Čársky (born on May 29, 1942) is a Slovakian quantum chemist. He obtained in 1968 his Ph.D. at Czechoslovak Academy of Sciences, Prague. He worked as senior researcher at the Institute of Organic Chemistry and Biochemistry, Czechoslovak Academy of Sciences, Prague (1989-1990). He became in 1990 Theoretical group leader, Jaroslav Heyrovsky Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Prague.