| Siddhartha Vanasthali Institute | |
| Established: | 1973 |
| Type: | [Public Trust] |
| City: | Kathmandu |
| Country: | Nepal |
| Students: | 4000 |
| Administrative Staff: | 300 |
Siddhartha Vanasthali Institute (SVI) is an academic institution in Balaju, Kathmandu, Nepal. It runs from primary school level to secondary high school up to university level courses. It was founded by Bhuwan Lal Joshi and Vijaynandan Joshi in 1951.
The Siddhartha Vanasthali alumni association (SIVAA) was established in 1985, through the effort of the 1977 graduating class.