Nestor Aloiziyevich Buinitsky (Russian: Нестор Алоизиевич Буйницкий, 1863–1914) was a Russian military engineer, professor of fortification, inventor and lieutenant general.

[1][2][3] He served as a military engineer at the Osowiec Fortress, where he would help in the construction of fortification buildings for four years.

In 1893 Buinitsky began to teach about fortification in a native university, and became a professor.

[5][6] In 1909, he became a member of the engineering committee, supervising creation of fortresses.

Buinitsky was known as a phenomenal expert on fortification, but he was also a talented writer.