Andrei Vasilievich Sinitsyn (Russian: Андрей Васильевич Синицын; 18 May 1939 – 27 December 2014) was a Soviet/Russian geologist, geochemist and philosopher.
Sinitsyn was born in Leningrad, May 18, 1939 to a family of scientists and geologists and as a child lived in China and Central Asia.
In 1956 he enrolled at the Geological Department of the Leningrad State University and graduated with honors in 1961.
In 1974 at Leningrad State University he defended his Grand Phd (DSc equivalent) dissertation on the topic of "South-eastern part of the Baltic Shield (problems of the structure and development)".
He was the youngest person to be awarded a Grand Phd in geological-mineralogical sciences in the history of the Soviet Union.