| Mariager | |
| Nickname: | Rosernes By (Town of Roses) |
| Settlement Type: | Town |
| Pushpin Map: | Denmark#Denmark North Jutland Region |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Denmark |
| Subdivision Type: | Country |
| Subdivision Name: | Denmark |
| Subdivision Type1: | Region |
| Subdivision Name1: | North Denmark Region |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Mariagerfjord |
| Established Title: | Foundation |
| Area Urban Km2: | 1.9 |
| Population As Of: | 1. January 2024 |
| Population Urban: | 2682 |
| Population Density Urban Km2: | auto |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +1 |
| Coordinates: | 56.65°N 10°W |
| Postal Code Type: | Postal code |
| Area Code: | (+45) |
Mariager is a town in Denmark with a population of 2,682 (1 January 2024).[1] It is situated on the southern shores of the inlet of Mariager Fjord in Mariagerfjord municipality, North Denmark Region in Jutland. This part of Jutland is also known as Kronjylland (Crown Jutland).