Petka

Petka may refer to:


 * Pětka or Committee of Five, a Czechoslovak organization
 * Petka, Iran, a village in Mazandaran Province, Iran
 * Saint Petka, an ascetic female saint from the Eastern Roman Empire
 * Petka (Požarevac), a village in Serbia
 * Petka, Lazarevac, a suburb of Lazarevac, Belgrade, Serbia
 * Edward Petka, American attorney and politician
 * Pyotr Isaev, Soviet commander, Vasily Chapaev's aide