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Surname Janusan (Janusan ) , worldwide, is an extremely rare last name. Much more frequently, Janusan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Janusan | India |
Ng, Jey, Janu, J-Nathan, Vijay, Srithsasan, Sivakumar, Jeyarajah, Jeyanthan, Jeyadevan, Dhanabalan, Yogalingam, Nagenthiram, Baskararajah, and Jeyachandran