Lobachevsky (disambiguation)
# Lobachevsky (disambiguation)

Nikolai Lobachevsky (1792–1856) was a Russian mathematician.

Lobachevsky (Лобачевский ; also Lobachevskij and Lobachevskiy; feminine: Lobachevskaya), a Russian-language surname, may also refer to:

* 1858 Lobachevskij, a main-belt asteroid
* N. I. Lobachevsky State University of Nizhny Novgorod or Lobachevsky University, Novgorod Oblast, Russia
* Lobachevskiy (crater), a crater on the Moon
* Lobachevsky Prize, including the Lobachevsky Medal
* Lobachevsky function, also called the Clausen function
* "Lobachevsky" (song), a humorous song by Tom Lehrer
* Lobachevskian or hyperbolic geometry
