Gennadi Sardanashvily was a theoretical physicist, a principal research scientist of Moscow State University.

Gennadij Timoscenko, is a Russian and Slovak chess Grandmaster (GM) (1980).

Gennadius of Massilia, also known as Gennadius Scholasticus or Gennadius Massiliensis, was a 5th-century Christian priest and historian.

Gennadiy Nikolaevich Aygi was a Chuvash poet and a translator. His poetry is written both in Chuvash and in Russian.

Gennadiy Martovich Prashkevich is a Russian science fiction writer, critic, editor, translator and International PEN member. He won the Aelita Prize (1994) and Garin-Mikhaylovsky Prize (1999). He is also a poet, translator and essayist. Some of his works (Razorvanoye chudo, Pyat kostrov rombom, Shpion protiv alkhimikov, Shkatulka rytsarya became popular.

Gennady Nikolaevich Bachinsky was a Russian radio talk show host and producer. He was also known as one of founders and guitarist of the indie group Chimera.

Gennady Vladimirovich Drach is a Russian scientist in the fields of culturology and history of ancient Greek philosophy. He is a professor at the Southern Federal University, vice president of the Russian Philosophical Society, and a 2007 Honored Scientist of the Russian Federation. He is a member of the Editorial Boards for Humanitarians of the South of Russia and Scientific Thought of Caucasus.

Gennady Igorevich Gladkov is a Soviet and Russian composer. He composed music for some of the most famous Soviet movies and cartoons, most notably The Bremen Town Musicians.

Gennady Samoilovich Gor was a Soviet writer of science fiction.

Gennady Gorelik is a research fellow at the Center for Philosophy and History of Science, Boston University. A physicist by education and historian by occupation, he published ten books and many articles on popular science and history of science, including in-depth biographies of 20th-century Russian physicists, Matvei Bronstein, Andrei Sakharov, and Lev Landau.