Portnov

Portnov (feminine: Portnova; Портнов, Портнова) is a Russian-language occupational surname derived from the occupation of portnoy, "tailor" and literally meaning " of the tailor". Sometimes written as Portnoff or Portnow.

The surname may refer to:
 * Aleksandr Portnov, Soviet Olympic diver
 * Andrii Portnov, Ukrainian historian
 * Andriy Portnov, Ukrainian lawyer
 * Zinaida Portnova, hero of the Soviet Union
 * Larion Portnov, a mayor of Odesa, Ukraine