| Ajstrup Parish | |
| Native Name: | Ajstrup Sogn |
| Native Name Lang: | da |
| Settlement Type: | Parish |
| Coordinates: | 57.1667°N 66°W |
| Subdivision Type: | Country |
| Subdivision Name: | Denmark |
| Subdivision Type1: | Region |
| Subdivision Name1: | North Jutland |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Aalborg Municipality |
| Subdivision Type3: | Diocese |
| Subdivision Name3: | Aalborg |
| Population As Of: | 2022 |
| Population Total: | 2,129[1] |
| Area Code Type: | Parish number |
| Area Code: | 8382 |
Ajstrup Parish (Danish: Ajstrup Sogn) is a parish in the Diocese of Aalborg in Aalborg Municipality, Denmark. The parish contains the town of Tylstrup and the villages of Ajstrup and Milbakken.