| Ann Grete Nørgaard | |
| Nationality: | Danish |
| Birth Date: | 15 September 1983 |
| Birth Place: | Viborg, Denmark |
| Position: | Left wing |
| Years1: | 2000–2006 |
| Clubs1: | Viborg HK |
| Years2: | 2006–2008 |
| Clubs2: | Randers HK |
| Years3: | 2008–2009 |
| Clubs3: | Viborg HK |
| Years4: | 2009–2010 |
| Clubs4: | Horsens HK |
| Years5: | 2010–2015 |
| Clubs5: | Team Tvis Holstebro |
| Years6: | 2015–2019 |
| Clubs6: | Viborg HK |
| Years7: | 2019–2020 |
| Clubs7: | SCM Râmnicu Vâlcea |
| Clubs8: | Storhamar HE |
| Years8: | 2021 |
| Clubs9: | Silkeborg-Voel KFUM |
| Years9: | 2021–2022 |
| Nationalyears1: | 2007–2016 |
| Nationalteam1: | Denmark |
| Nationalcaps1: | 139 |
| Nationalgoals1: | 549 |
Ann Grete Nørgaard Østerballe (born 15 September 1983)[1] is a Danish former professional handballer. She represented the Denmark women's national team.
She is an educated teacher from VIA University College in Skive as of 2010, being specialised in the subjects Mathematics, Social Studies, History and Science.