| Kasselaid | |
| Location: | Gulf of Riga |
| Coordinates: | 58.1425°N 22.5425°W |
| Area Ha: | 49.92 |
| Coastline Km: | 7.4 |
| Country: | Estonia |
| Country Admin Divisions Title: | County |
| Country Admin Divisions: | Saare County |
| Country Admin Divisions Title 1: | Municipality |
| Country Admin Divisions 1: | Saaremaa Parish |
| Country Admin Divisions Title 2: | Settlement |
| Country Admin Divisions 2: | Abruka village |
| Population: | 0 |
Kasselaid is a 49.92ha[1] uninhabited Estonian islet in the Gulf of Riga, about 300m (1,000feet) east of the island of Abruka. Administratively, it belongs to the Abruka village in Saaremaa Parish, Saare County. The island is part of the Abruka Nature Reserve.