Namesakes
Austrian Dukes and Emperors:
1 archduke
Archduke Joseph I (a.k.a. Jacob) 1705-1711 
Biblical Characters:
1 character
Jacob (m) Gen. 25:26/Gen. 32:28
Bohemian Kings:
1 king
King Josef I (a.k.a. Jacob) 1705-1711
James I (a.k.a. Jacob) 819-830
Danish Prime Ministers:
1 prime minister
Jacob Brønnum Scavenius Estrup 1875-1894
Dutch Prime Ministers:
5 prime ministers
Jacob de Kempenaer 1848-1849
Justinus van der Brugghen (a.k.a. Jacob) 1856-1858
Jan Jacob Rochussen 1858-1860
Jacob van Zuylen van Nijevelt 1861
Jules van Zuylen van Nijevelt (a.k.a. Jacob) 1866-1868
Fictional Characters from Books:
3 characters
Jacob Marley 1843 A Christmas Carol
Jacob Heym 1969 Jakob the Liar
Jacob de Zoet 2010 The Thousand Autumns of Jacob de Zoet
Fictional Characters from Song Titles:
1 character
(character) Jacob 2011 Noah and Jacob's Song
Fictional Characters from Television:
5 characters
Jake Slicker 1993 Dr. Quinn, Medicine Woman
Jacob Ness 2005 Prison Break
Jake Reilly 2007 Private Practice
Jake Puckerman 2009 Glee
D. J. Conner (a.k.a. Jacob) 1988; 2018 Roseanne; The Conners
German Kings and Holy Roman Emperors:
1 king-emperor
King-Emperor Joseph I (a.k.a. Jacob) 1690-1711
Hall-of-Famers:
3 baseball
(baseball) Jake Beckley 1971
(baseball) Nellie Fox (a.k.a. Jacob) 1997
(baseball) Jacob Ruppert 2013
Hungarian Kings and Queens:
1 king
King József I (a.k.a. Jacob) 1687-1711
Most Valuable Players:
1 winner
Nellie Fox (a.k.a. Jacob) 1959 baseball
Notable Activists and Revolutionaries:
1 activist
(activist) Jack Kevorkian (a.k.a. Jacob) 1928-2011
Notable Actors and Entertainers:
5 actors, 1 comedian/actor
Rodney Dangerfield (a.k.a. Jacob) 1921-2004
Jack Black 1969-
Justin Long (a.k.a. Jacob) 1978-
Jacob Tomuri 1979-
Jake Abel 1987-
Jacob Tremblay 2006-
Notable Artists:
2 painters, 1 cartoonist
Jacob Jordaens 1593-1678
Jacob van Ruisdael c. 1629-1682
Jack Kirby (a.k.a. Jacob) 1917-1994
Notable Athletes:
1 baseball, 1 soccer
(baseball) Nellie Fox (a.k.a. Jacob) 1927-1975
(soccer) Fernando Ricksen (a.k.a. Jacob) 1976-2019
Notable Businesspeople:
2 businesspersons
John Jacob Astor 1763-1848
John Jacob Astor IV 1864-1912
Notable Explorers and Adventurers:
1 explorer
Jacob Roggeveen 1659-1729
Notable Filmmakers:
1 director, 1 director/producer
John M. Stahl (a.k.a. Jacob) 1886-1950
J. J. Abrams (a.k.a. Jacob) 1966-
Notable Journalists:
1 journalist
(journalist) Jacob Riis 1849-1914
Notable Musicians:
1 composer
George Gershwin (a.k.a. Jacob) 1898-1937
Notable Politicians and Statespeople:
5 politicians
Jacob Cats 1577-1660
Adolphe Crémieux (a.k.a. Jacob) 1796-1880
Molly Geertsema (a.k.a. Jacob) 1918-1991
Job de Ruiter (a.k.a. Jacob) 1930-2015
Wouter Bos (a.k.a. Jacob) 1963-
Notable Scientists and Inventors:
1 chemist
Jöns Jacob Berzelius 1779-1848
Notable Writers:
2 authors, 2 poets
Jacob van Maerlant c. 1235-c. 1300
Jacob Cats 1577-1660
Jacob Grimm 1785-1863
Jappe Nilssen (a.k.a. Jacob) 1870-1931
Olympic Medalists:
4 bronze, 2 gold, 1 silver
(bronze) Jaap Boot 1924 4x100 m relay
(bronze) Jaap Kraaier 1936 canoe sprint
(bronze) Jake Arrieta 2008 baseball
(gold) Jacob Clear 2012 canoe sprint
(gold) Jake Varner 2012 wrestling
(silver) Jacob Wukie 2012 archery - team
(bronze) Jacob Barsøe 2012 rowing
Other Leaders:
1 president
President Jacob Zuma 2009-2018 South Africa
Rock and Roll Hall-of-Famers:
1 musician
Jake Carey 2001 The Flamingos
Saints:
2 saints
Saint James (a.k.a. Jacob) ?-338
Saint James of Nisibis (a.k.a. Jacob) ?-350