| Anja Althaus | |
| Birth Date: | 3 September 1982 |
| Birth Place: | Magdeburg, East Germany |
| Nationality: | German |
| Position: | Pivot |
| Youthyears1: | 1990–1998 |
| Youthclubs1: | SC Magdeburg |
| Years1: | 1998–2000 |
| Clubs1: | HC Niederndodeleben |
| Years2: | 2000–2007 |
| Clubs2: | DJK/MJC Trier |
| Years3: | 2007–2012 |
| Clubs3: | Viborg HK |
| Years4: | 2012–2014 |
| Clubs4: | Thüringer HC |
| Years5: | 2014–2017 |
| Clubs5: | ŽRK Vardar |
| Years6: | 2017–2018 |
| Clubs6: | Győri ETO KC |
| Nationalyears1: | 2002–2014 |
| Nationalteam1: | Germany |
| Nationalcaps1: | 243 |
| Nationalgoals1: | 527[1] |
| Managerclubs1: | North Macedonia (assistant) |
| Manageryears1: | 2023– |
Anja Althaus (born 3 September 1982) is a retired German handball player who most recently played for Győri ETO KC and formerly was a member of the German national team.[2] She won the Champions League three times in her career (twice with Viborg, once with Győr).
Althaus made her debut on the German team in 2002.[2] She received a bronze medal at the 2007 World Championship. She competed at the 2008 Summer Olympics in Beijing, where Germany finished 11th.
She announced her retirement from professional handball after the Champions League final in 2017, where HC Vardar fell short to Győri ETO. She changed her mind and a few weeks later signed a contract with Győri ETO.[3] She won the Champions League title, the Hungarian Championship and the Hungarian Cup as well and then she retired from handball in 2018 for good.