Nikisch is a surname of Slavic origin (Nikiš, "little Nik(olaus)"). Notable people with the surname include: Amélie Nikisch (née Heussner; 1862–1938), Belgian actress and composer. Artúr Nikisch (1855–1922), Hungarian conductor. Arthur Philipp Nikisch (1888–1968), German lawyer, son of Arthur (de) Mitja Nikisch (1899–1936), German classical pianist, dance band leader, composer, son of Arthur. Roy (Abelardo) Nikisch (born 1951), Croatian-Argentine Radical Civic Union senator. Jan Jacek Nikisch (1910–1996), Polish advocate. Niekisch.
https://en.wikipedia.org/wiki/Niki%C5%A1