| Arran–Elderslie | |
| Official Name: | Municipality of Arran–Elderslie |
| Settlement Type: | Municipality (lower-tier) |
| Flag Size: | 120x100px |
| Pushpin Map: | CAN ON Bruce#Canada Southern Ontario |
| Coordinates: | 44.4°N -93°W |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Type2: | County |
| Established Title: | Settled |
| Established Title2: | Formed |
| Leader Title: | Mayor |
| Leader Name: | Steve Hammell |
| Leader Title1: | Federal riding |
| Leader Title2: | Prov. riding |
| Area Land Km2: | 460.07 |
| Population As Of: | 2016 |
| Population Footnotes: | [1] |
| Population Total: | 6803 |
| Population Density Km2: | 14.8 |
| Utc Offset: | -5 |
| Utc Offset Dst: | -4 |
| Postal Code: | N0G |
| Elevation M: | 254 |
The Municipality of Arran–Elderslie is a township in Bruce County in Western Ontario, Canada. The township is located at the headwaters of the Sauble River, and the Saugeen River forms the northwestern boundary.
The township comprises the communities of Allenford, Arkwright, Arranvale, Arran Lake, Burgoyne, Chesley, Dobbinton, Dreamland, Dunblane, Ellengowan, Elsinore, Gillies Hill, Invermay, Kelly's Corners, Lockerby, Mount Hope, Paisley, Salem, Salisbury, Tara, Vesta and Williscroft.
In the 2021 Census of Population conducted by Statistics Canada, Arran–Elderslie had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of 458.76km2, it had a population density of in 2021.[2]