Namesakes
Brazilian Presidents:
1 president
Ernesto Geisel 1974-1979 
Hall-of-Famers:
1 baseball
(baseball) Ernie Lombardi 1986
Hurricanes and Tropical Storms:
5 storms, 2 hurricanes
Storm Ernesto 1982
Storm Ernesto 1988
Storm Ernesto 1994
Storm Ernesto 2000
Hurricane Ernesto 2006
Hurricane Ernesto 2012
Storm Ernesto 2018
Most Valuable Players:
1 winner
Ernie Lombardi 1938 baseball
Nobel Prize Winners:
1 peace
(peace) Ernesto Teodoro Moneta 1907
Notable Activists and Revolutionaries:
1 activist
(activist) Che Guevara (a.k.a. Ernesto) 1928-1967
Notable Actors and Entertainers:
1 actor
Steven Bauer (middle name Ernesto) 1956-
Notable Musicians:
1 singer
Semino Rossi (middle name Ernesto) 1962-
Olympic Medalists:
1 bronze, 1 gold
(bronze) Ernesto Ambrosini 1920 3000 m steeplechase
(gold) Ernesto Canto 1984 20 km walk
Portuguese Presidents and Prime Ministers:
1 prime minister
(prime minister) Ernesto Hintze Ribeiro 1893-1897; 1900-1904; 1906