Oleg Oleksandrovych Krishtal (born in 1945, Kyiv) is a scientist in the field of biophysics, a full member of the National Academy of Sciences of Ukraine (1997),[1] a member of Academia Europaea (1990),[2] Doctor of Biological Sciences (1981), and professor (1983).

[1] He is a laureate of the State Prize of the USSR and Ukraine in science and technology[2] and one of the most cited Ukrainian scientists.

[3] Oleg Krishtal was born on July 5, 1945, in Kyiv,[1] into the family of biologist-scientist Oleksandr Pylypovych Krishtal [uk], a professor and head of the Department of Invertebrate Physiology at Taras Shevchenko National University of Kyiv.

[4] Krishtal is a co-author of the development of the method of intracellular dialysis of nerve cells,[5] which made it possible to study their electrophysiological properties.

[10] For many years, research of Oleg Krishtal has focused on the role of membrane proteins, mainly ion channels and metabotropic receptors, in the functioning of single neurons, neural networks, and whole organs.