Jaroslav Heyrovský (December 20, 1890–March 27, 1967) was a Czech chemist and inventor. Heyrovský was the inventor of the polarographic method, father of the electroanalytical method, and recipient of the Nobel Prize in 1959. His main field of work was polarography.
 

He obtained his early education at secondary school until 1909 when he began his study of chemistry, physics, and mathematics at the Charles University in Prague.
Heyrovský started his university career as assistant to Professor B. Brauner in the Institute of Analytical Chemistry of the Charles University, Prague; he was promoted to Associate Professor in 1922 and in 1926 he became the University's first Professor of Physical Chemistry.
Heyrovský's invention of the polarographic method dates from 1922 and he concentrated his whole further scientific activity on the development of this new branch of electrochemistry.
In 1950 Heyrovský was appointed Director of the newly established Polarographic Institute which has since been incorporated into the Czechoslovak Academy of Sciences since 1952.
In 1926 Professor Heyrovský married Marie Koranová, and the couple had two children, a daughter, Judith, and a son, Michael.
Jaroslav Heyrovský died on March 27, 1967. He was interred in the Vyšehrad cemetery in Prague.