Namesakes
Argentine Presidents:
1 president
Arturo Umberto Illia 1963-1966 
Notable Artists:
1 painter
Umberto Boccioni 1882-1916
Notable Musicians:
1 musician
Umberto Tozzi 1952-
Notable Writers:
1 author
Umberto Eco 1932-2016
Olympic Medalists:
1 silver
(silver) Umberto Panerai 1976 water polo
Other Royalty:
2 kings, 1 prince
Umberto I of Italy 1878-1900 Italy
Vittorio Emanuele of Savoy (middle name Umberto) 1937-1946 Italy
Umberto II of Italy 1946 Italy