| Sr. No. | City Name |
|---|---|
| 501 | Oldenburg in Holstein |
| 502 | Olpe |
| 503 | Oranienburg |
| 504 | Oschatz |
| 505 | Oschersleben (Bode) |
| 506 | Osnabrück |
| 507 | Osterholz-Scharmbeck |
| 508 | Osterode am Harz |
| 509 | Ottobrunn |
| 510 | Paderborn |
| 511 | Papenburg |
| 512 | Parchim |
| 513 | Passau |
| 514 | Peine |
| 515 | Perleberg |
| 516 | Pfaffenhofen a.d.Ilm |
| 517 | Pforzheim |
| 518 | Pfullingen |
| 519 | Pinneberg |
| 520 | Pirmasens |
| 521 | Pirna |
| 522 | Planegg |
| 523 | Plau am See |
| 524 | Plauen |
| 525 | Plettenberg |
| 526 | Plochingen |
| 527 | Potsdam |
| 528 | Prenzlau |
| 529 | Pritzwalk |
| 530 | Pößneck |
| 531 | Quakenbrück |
| 532 | Quedlinburg |
| 533 | Radeberg |
| 534 | Radebeul |
| 535 | Radevormwald |
| 536 | Radolfzell am Bodensee |
| 537 | Rastatt |
| 538 | Ratekau |
| 539 | Rathenow |
| 540 | Ratingen |
| 541 | Ratzeburg |
| 542 | Raunheim |
| 543 | Ravensburg |
| 544 | Recklinghausen |
| 545 | Regensburg |
| 546 | Reichenbach im Vogtland |
| 547 | Reinbek |
| 548 | Reinfeld (Holstein) |
| 549 | Remagen |
| 550 | Remscheid |