| Cottesloe Western Australia—Legislative Assembly | |
|---|---|
 Location of Cottesloe (dark green) in the Perth metropolitan area | |
| State | Western Australia |
| Dates current | 1950–present |
| MP | David Honey |
| Party | Liberal |
| Namesake | Cottesloe |
| Electors | 31,219 (2021) |
| Area | 38 km2 (14.7 sq mi) |
| Demographic | Metropolitan |
| Coordinates | 32°00′S 115°46′E / 32.00°S 115.76°E |
Cottesloe is a Legislative Assembly electorate in the state of Western Australia. Cottesloe is named for the western Perth suburb of Cottesloe, which falls within its borders. Its previous member, Colin Barnett, was the 29th Premier of Western Australia. The current member, David Honey, was elected in a by-election after Barnett resigned in 2018.