| Country: | Wales |
| Official Name: | Caerau |
| Coordinates: | 53.3955°N -4.528°W |
| Cardiff Distance Mi: | 144 |
| London Distance Mi: | 226 |
| Unitary Wales: | Anglesey |
| Lieutenancy Wales: | Gwynedd |
| Community Wales: | Cylch-y-Garn |
| Constituency Welsh Assembly: | Ynys Môn |
| Constituency Westminster: | Ynys Môn |
| Post Town: | Holyhead |
| Postcode District: | LL65 |
| Os Grid Reference: | SH 3200 9172 |
Caerau, Cylch-y-Garn is an area in the community of Cylch-y-Garn, Isle of Anglesey, Wales.
There is a group of buildings at Caerau which form a mansion and outbuildings, the mansion became Grade II* listed in 1970.[1] The original house was built in the late 1600s, then an almost-separate large extension was added in 1730, in the form of another building with a wing to attach the two. A separate stable block, latrine block and gateway have their own heritage listings.
As of 2020, the mansion had been reported to have been unoccupied for many years and was in need of major reconstruction.[2]