The O'Sullivan Twins
First edition | |
| Author | Enid Blyton |
|---|---|
| Illustrator | W. Lindsay Cable |
| Language | English |
| Series | St. Clare's |
| Subject | Boarding, Classic |
| Publisher | Methuen |
Publication date | 1942 |
| Publication place | United Kingdom |
| Preceded by | The Twins at St. Clare's |
| Followed by | Summer Term at St. Clare's |
The O'Sullivan Twins is the second in the St. Clare's series of children's novels by Enid Blyton. It was first published in 1942 by Methuen.