Sergey Khoruzhiy (5 October 1941 – 22 September 2020) was a prominent Russian physicist, mathematician, philosopher, and theologian.

[1] Khoruzhiy's father was an Arctic pilot who died while serving in World War II in 1941, the same year Khorouzhiy was born.

He also served as a professor in the Department of Comparative Study of Religious Traditions at UNESCO, and directed the Institute of Synergistic Anthropology, beginning in 2005.

In addition to his career in the scientific fields, Khoruzhiy published the works of philosophers Pavel Florensky, Sergei Bulgakov, Aleksei Losev, and Lev Karsavin.

He also translated many works by the Irish author James Joyce, such as Ulysses and A Portrait of the Artist as a Young Man.