| Trondheim International School | |
| Location: | Trondheim |
| Country: | Norway |
| Established: | 2004 |
| Type: | Private |
| Headmaster: | Agneta Amundsson[1] |
| Enrollment: | (approx.) 200 |
| Faculty: | 30 |
Trondheim International School ("This") was founded in 2004 as an alternative to the Norwegian schools. It became an IB World School in 2008. It sees the IB program as a continuation process from the "PYP" to the "MYP" to the "DP" programs, and therefore has a continuation process with communication with the IB Diploma Program in the Trondheim Cathedral School.[2]