Namesakes
Biblical Characters:
1 character
Jacob (m) Gen. 25:26/Gen. 32:28 
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; 1866-1868
Jules van Zuylen van Nijevelt (a.k.a. Jacob) 1866-1868
Fictional Characters from Books:
1 character
Jacob Marley 1843 A Christmas Carol
Notable Artists:
1 painter
Jacopo Comin "Tintoretto" (a.k.a. Jacob) 1518-1594
Notable Businesspeople:
2 businesspersons
John Jacob Astor 1763-1848
John Jacob Astor IV 1864-1912
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 Politicians and Statesmen:
1 politician
Jacob Cats 1577-1660
Notable Scientists and Inventors:
1 chemist
Jöns Jacob Berzelius 1779-1848
Notable Writers:
2 poets, 1 author
Jacob van Maerlant c. 1235-c. 1300
Jacob Cats 1577-1660
Jacob Grimm 1785-1863
Olympic Medalists:
2 bronze, 2 gold, 1 silver
(bronze) Jacob Boot 1924 4x100 m relay
(gold) Jacob Clear 2012 canoe sprint
(gold) Jake Varner (a.k.a. Jacob) 2012 wrestling
(silver) Jacob Wukie 2012 archery
(bronze) Jacob Barsøe 2012 rowing
Saints:
3 blessed, 3 saints
Saint James (a.k.a. Jacob) ?-338
Saint James of Nisibis (a.k.a. Jacob) ?-350
Blessed Jacques-Désiré Laval (a.k.a. Jacob) 1803-1864
Saint Jacques-Honoré Chastan (a.k.a. Jacob) ?-1839
Blessed Jakob Kern (a.k.a. Jacob) 1897-1924
Blessed Jakob Gapp (a.k.a. Jacob) 1897-1943
Title Characters:
4 books, 2 songs
(book) Jacob 1980 Jacob Have I Loved
(song) Jacob 1980; 1986 Jacob's Ladder
(book) Jacob Green 2004 The Unthinkable Thoughts of Jacob Green
(book) Jacob de Zoet 2010 The Thousand Autumns of Jacob de Zoet
(song) Jacob 2011 Noah and Jacob's Song
(book) Jacob 2015 Jacob