| Scottish Gaelic name | Eilean Mhoire |
|---|---|
| Location | |
  Lady Isle Lady Isle shown within South Ayrshire | |
| OS grid reference | NS27529335 |
| Coordinates | 55°32′N 4°44′W / 55.53°N 4.73°W |
| Physical geography | |
| Island group | Firth of Clyde |
| Area | 2.3 ha |
| Highest elevation | 6 m |
| Administration | |
| Council area | South Ayrshire |
| Country | Scotland |
| Sovereign state | United Kingdom |
| Demographics | |
| Population | 0 |
 | |
Lady Isle is a small, uninhabited island, in the Firth of Clyde, Scotland. It was once home to a chapel dedicated to Saint Mary. The island features a lighthouse and a freshwater spring.