Namesakes
Friedrich III
(a.k.a. Nikolaus) (m) 1831-1888 
Other Royalty 1888 German Empire; Prussia (emperor/king)
Maximilian of Liechtenstein
(a.k.a. Nikolaus) (m) 1969-
Other Royalty 1969- Liechtenstein (prince)
Niki Lauda
(m) 1949-2019
Notable Athletes (driving)
Nikolaus of Liechtenstein
(m) 1947-
Other Royalty 1947- Liechtenstein (prince)
Nikolaus of Liechtenstein
(m) 2000-
Other Royalty 2000- Liechtenstein (prince)
Nikolaus Gross
(m) 1898-1945
Saints
Nikolaus Otto
(m) 1832-1891
Notable Scientists and Inventors