Hartog and de/den Hartog are Dutch surnames meaning `(the) duke` (modern Dutch hertog). Hartog is also a Jewish given name and surname, derived from hert (Dutch for `deer`). People with these names include: ... Found on http://en.wikipedia.org/wiki/Hartog
1) Dutch surname 
Hartog and de/den Hartog are Dutch surnames meaning `(the) duke` (modern Dutch hertog). Hartog is also a Jewish given name and surname, derived from hert (Dutch for `deer`). People with these names include: ...