| Cassils | |
| Settlement Type: | Hamlet |
| Pushpin Relief: | yes |
| Pushpin Map: | Canada Alberta#Canada |
| Pushpin Map Caption: | Location of Cassils |
| Subdivision Type: | Country |
| Subdivision Name: | Canada |
| Subdivision Type1: | Province |
| Subdivision Name1: | Alberta |
| Subdivision Type2: | Region |
| Subdivision Name2: | Southern Alberta |
| Subdivision Type3: | Census division |
| Subdivision Name3: | 2 |
| Subdivision Type4: | Municipal district |
| Subdivision Name4: | County of Newell |
| Government Type: | Unincorporated |
| Leader Title1: | Governing body |
| Leader Name1: | County of Newell Council |
| Established Title: | Established |
| Population As Of: | 2020 |
| Population Footnotes: | [1] |
| Population Total: | 22 |
| Timezone: | MST |
| Utc Offset: | −07:00 |
| Timezone Dst: | MDT |
| Utc Offset Dst: | −06:00 |
| Coordinates: | 50.5786°N -112.0483°W |
| Postal Code Type: | Postal code |
| Area Code: | 403, 587, 825 |
| Blank Name: | Highways |
| Blank1 Name: | Waterways |
Cassils is a hamlet in southern Alberta, Canada within the County of Newell. It is located on the north side of a Canadian Pacific rail line 2.9km (01.8miles) west of the intersection of Highway 36 and Highway 542.[2] It is 10km (10miles) west of the City of Brooks and 7.5km (04.7miles) south of the Trans-Canada Highway (Highway 1).
The hamlet is named after Charles Cassils, of the Montreal firm of Cassils and Cochrane.[3] Cassils, a native of Dumbartonshire, Scotland, died July 2, 1908, aged 77.
The population of Cassils according to the 2020 municipal census conducted by the County of Newell is 22.[1]