Pyatnitsky (surname)

Pyatnitsky (Пятницкий; masculine) or Pyatnitskaya (Пятницкая; feminine) is a Russian surname. It is shared by the following people:
 * Andrey Pyatnitsky (b. 1967), Russian association football player
 * Konstantin Pyatnitsky (1864–1938), Russian journalist, publisher, and memoirist
 * Mitrofan Pyatnitsky (1864–1927), Russian musician, founder of the Pyatnitsky Choir
 * Osip Piatnitsky (Pyatnitsky) (1882–1938), Soviet politician
 * Valery Pyatnitsky (b. 1962), Ukrainian politician

Fictional characters

 * Maxim Arturovitch Pyatnitski, the protagonist of the Pyat Quartet tetralogy by Michael Moorcock