| Country: | England |
| Static Image Name: | Daffodils and damsons, Hazelslack Tower (geograph 3441010).jpg |
| Static Image Caption: | Daffodils and damsons, Hazelslack Tower |
| Coordinates: | 54.201°N -2.803°W |
| Official Name: | Hazelslack |
| Civil Parish: | Beetham |
| Shire District: | South Lakeland |
| Shire County: | Cumbria |
| Region: | North West England |
| Constituency Westminster: | Westmorland and Lonsdale |
| Post Town: | MILNTHORPE |
| Postcode District: | LA7 |
| Postcode Area: | LA |
| Dial Code: | 01524 |
| Os Grid Reference: | SD476786 |
| Pushpin Map: | United Kingdom South Lakeland |
| Pushpin Map Caption: | Location in South Lakeland |
Hazelslack is a hamlet in the South Lakeland district, in the English county of Cumbria. It is near the villages of Arnside and Storth.
Nearby Hazelslack Tower is the ruins of a 14th-century building, and is Grade II listed. It has been described as a peel tower and is a Scheduled Monument. As of 2014, English Heritage considered the condition of the privately owned tower to be very bad.[1]
Hazelslack also has a camp site.[2]