Nepomucký (feminine: Nepomucká) is a Czech surname or epithet literally meaning 'from Nepomuk'.
Jan Nepomucký, the native Czech name of John of Nepomuk, a saint Karel Nepomucký, Czech footballer (1920–2015), Polish writer
Also, "Jan Nepomucký" could be a compound given name: Jan S. Kolár, christened Jan Nepomucký Josef Kohn John Neumann, christened Jan Nepomucký Neumann Karel VI Schwarzenberg (1911–1986), christened Karel Bedřich Maria Josef Jan Nepomucký Cyril Metoděj Karel Schwarzenberg (1937–2023), christened Karel Jan Nepomucký Josef Norbert Bedřich Antonín Vratislav Menas
See also
Giovanni Nepomuceno, Italian double given name Jan Nepomuk, another Czech version of the given name Jan Nepomucen, Polish version of the given name Juan Nepomuceno, Spanish version of the given name Nepomuceno (surname)