| Country: | England |
| Official Name: | Osmington Mills |
| Coordinates: | 50.6356°N -2.3754°W |
| Static Image: | The smugglers inn osmington mills.JPG |
| Static Image Width: | 240px |
| Static Image Caption: | The Smugglers' Inn at Osmington Mills |
| Shire County: | Dorset |
| Region: | South West England |
| Constituency Westminster: | South Dorset |
| Post Town: | WEYMOUTH |
| Postcode District: | DT3 |
| Postcode Area: | DT |
| Dial Code: | 01305 |
| Os Grid Reference: | SY734820 |
Osmington Mills is a coastal hamlet in the English county of Dorset. It lies within the civil parish of Osmington 5miles northeast of Weymouth.
The coastline around Osmington Mills is part of Dorset's Jurassic Coast, and fossils can be found in the cliffs. The rocks consist of Kimmeridge Clay and the Corallian group from the Oxfordian (Upper Jurassic) and have an interesting trace fossil assemblage. To the west are Black Head and beyond that Redcliff Point, with fossils in the Upper Oxford Clay.
Osmington Mills is popular with tourists, providing facilities such as camping and caravan sites, a public house (of which the site has been traced back to the 13th century), and attractive coastal walks.
The area around Osmington Mills and Osmington Bay was painted by the English landscape artist John Constable in the early 19th century. He spent his honeymoon in the area in 1816. Paintings include: