Cairn Catto
| Photographed in 2010 | |
| Location | Near Longside, Aberdeenshire, Scotland | 
|---|---|
| Coordinates | 57°28′10″N 1°52′41″W / 57.4694°N 1.8780°W | 
| Type | Long cairn | 
| Area | 47.18 by 18.28 metres (154.8 ft × 60.0 ft) | 
| History | |
| Periods | Neolithic | 
| Official name | Cairn Catto | 
| Type | Prehistoric ritual and funerary: long cairn | 
| Designated | 6 July 1973 | 
| Reference no. | SM3276 | 
Cairn Catto is a Neolithic long cairn near the village of Longside, Aberdeenshire, Scotland. Historic Environment Scotland established the site as a scheduled monument in 1973.