| Official Name: | Øster Ulslev |
| Settlement Type: | Town |
| Pushpin Map: | Denmark Lolland |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location on Lolland |
| Subdivision Type: | Country |
| Subdivision Name: | Denmark |
| Subdivision Type1: | Region |
| Subdivision Name1: | Zealand (Sjælland) |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Guldborgsund |
| Unit Pref: | Imperial |
| Population As Of: | 2024 |
| Population Total: | 232 |
| Timezone1: | CET |
| Utc Offset1: | +1 |
| Timezone1 Dst: | CEST |
| Utc Offset1 Dst: | +2 |
| Coordinates: | 54.6983°N 11.6272°W |
Øster Ulslev is a village in the southeast of the Danish island of Lolland. As of 2024, it has a population of 232.[1]