There is one place named Hammerhardt in Germany.
All places in the world called "Hammerhardt".
Neustadt (15)
Marienthal (13)
Neuhof (13)
Neudorf (12)
Burg (12)
Buchholz (11)
Friedrichsthal (11)
Lindenberg (11)
Neuhaus (11)
Glashütte (10)
Aue (10)
Schönberg (10)
Steinberg (10)
Bergen (10)
Holzhausen (10)
Winkel (9)
Altenhof (9)
Neukirchen (9)
Lichtenberg (9)
Blumenthal (9)
Steinfeld (9)
Langenberg (8)
Eichholz (8)
Schönfeld (8)
Steinbach (8)
Rosenthal (8)
Limbach (8)
Steinfurth (8)
Altstadt (8)
Breitenbach (8)