Isabell Ost
| full name | Isabell Ost | |
| nationality | Germany (GER) | |
| born | October 1988 | in Erfurt (East Germany) |
| Navigation | Championships | World Cup |
Championships - Medal table and top 10 positions
| kampioenschap | gold | silver | bronze | 4th-6th | 7th-10th | starts |
 Olympic Games | 0 | 0 | 0 | 0 | 0 | 1 |
| WCh Single Distances | 0 | 0 | 1 | 1 | 1 | 7 |
| WCh Allround | 0 | 0 | 0 | 0 | 0 | 3 |
 ECh Allround | 0 | 0 | 0 | 0 | 1 | 5 |
Championships - Results
| year | position | championship | place | |
| 2009 | NC22 | WCh Allround | Hamar | NOR |
| 2010 | 22 | Olympic Games 1500 meters | Vancouver | CAN |
| NC18 | ECh Allround | Hamar | NOR | |
| 2011 | 16 | WCh Single Distances 1500 meters | Inzell | GER |
3  | WCh Single Distances Team pursuit | Inzell | GER | |
| NC18 | WCh Allround | Calgary | CAN | |
| NC14 | ECh Allround | Collalbo | ITA | |
| 2012 | 17 | WCh Single Distances 3000 meters | Heerenveen | NED |
| 5 | WCh Single Distances Team pursuit | Heerenveen | NED | |
| 22 | WCh Allround | Moscow | RUS | |
| 10 | ECh Allround | Budapest | HUN | |
| 2013 | NC20 | ECh Allround | Heerenveen | NED |
| 2015 | 18 | WCh Single Distances 1500 meters | Heerenveen | NED |
| 15 | WCh Single Distances 3000 meters | Heerenveen | NED | |
| 7 | WCh Single Distances Team pursuit | Heerenveen | NED | |
| NC9 | ECh Allround | Chelyabinsk | RUS | |
