Oleksandr Oleksandrovych Bogomolets (Ukrainian: Олександр Олександрович Богомолець; Russian: Александр Александрович Богомолец, romanized: Aleksandr Aleksandrovich Bogomolets; 24 May 1881 – 19 July 1946) was a Soviet and Ukrainian pathophysiologist.

He was president of the National Academy of Sciences of Ukraine and director of the Institute of clinical Physiology in Kyiv.

His laboratories were located in Georgia, where he had a permanent research unit attached to the Academy of Sciences (1937).

According to Zhores Medvedev, this was made possible by Stalin, who wanted members of the Experimental Institute to study the extension of life expectancy.

[2] In 1938, in Kyiv, Oleksandr Bogomolets convened the world’s first scientific conference on aging and longevity.