| Sr. No. | City |
|---|---|
| 1576 | OLPE |
| 1577 | OLSBERG |
| 1578 | OPLADEN |
| 1579 | OPPENAU |
| 1580 | OPPENHEIM |
| 1581 | ORANIENBURG |
| 1582 | ORTENBURG |
| 1583 | OSCHATZ |
| 1584 | OSCHERSLEBEN |
| 1585 | OSNABRUECK |
| 1586 | OSTBEVERN |
| 1587 | OSTERBURG |
| 1588 | OSTERBURKEN |
| 1589 | OSTERHOFEN |
| 1590 | OSTERHOLZ-SCHARMBECK |
| 1591 | OSTERODE (HARZ) |
| 1592 | OSTFILDERN |
| 1593 | OSTRHAUDERFEHN |
| 1594 | OSTSTEINBEK |
| 1595 | OTTENBACH |
| 1596 | OTTENSOOS |
| 1597 | OTTERBACH |
| 1598 | OTTERNDORF |
| 1599 | OTTERSBERG |
| 1600 | OTTOBEUREN |