Dutch Prime Ministers: 1 prime minister
Jacob de Kempenaer (a.k.a. Jacobus)   1848-1849  
Hall-of-Famers: 1 football
(football) Jim Thorpe (a.k.a. Jacobus)   1963  
Nobel Prize Winners: 1 chemistry
(chemistry) Jacobus Henricus van 't Hoff   1901  
Notable Actors and Entertainers: 1 actor, 1 comedian
Jim Thorpe (a.k.a. Jacobus)   1887-1953  
Youp van 't Hek (a.k.a. Jacobus)   1954-  
Notable Artists: 1 painter
Lucebert (a.k.a. Jacobus)   1924-1994  
Notable Athletes: 1 cycling, 1 football, 1 rugby
(football) Jim Thorpe (a.k.a. Jacobus)   1887-1953  
(cycling) Jaco Venter   1987-  
(rugby) Willie le Roux (a.k.a. Jacobus)   1989-  
Notable Politicians and Statespeople: 1 politician
Koos Andriessen   1928-2019  
Notable Scientists and Inventors: 1 astronomer, 1 chemist
Jacobus Kapteyn   1851-1922  
Jacobus Henricus van 't Hoff   1852-1911  
Notable Writers: 1 author/poet, 1 poet
Lucebert (a.k.a. Jacobus)   1924-1994  
Joost Zwagerman (a.k.a. Jacobus)   1963-2015  
Olympic Medalists: 2 gold, 1 bronze, 1 silver
(gold) Jim Thorpe (a.k.a. Jacobus)   1912   decathlon; pentathlon  
(gold) Jo van Gastel (a.k.a. Jacobus)   1920   archery - moving target 28 m, team  
(bronze) Joop Rohner (a.k.a. Jacobus)   1948   water polo  
(silver) Dick Quax (a.k.a. Jacobus)   1976   5000 m  
Saints: 2 blessed, 1 saint
Blessed Jacobus of Voragine   1228-1298  
Blessed Giacomo Benefatti (a.k.a. Jacobus)   ?-1332  
Saint Jacobus Lacobs   ?-1572