| Past Pupils | Old Nalandians Association of NSW | Priya D.Viswakula | P.O.Box 2115, Carlingford 2118 | (02) 9872 4547 | This email address is being protected from spambots. You need JavaScript enabled to view it. |
| Past Pupils | Old Nalandians Association of Victoria - Australia | Harsha Jayalath | N/A | N/A | N/A |
| Social | Old Students of International Schools Organisation | Sahan Hewadewa | 10, Bedford Court, Hopper Crossing 3092 | 0408 292 780 | This email address is being protected from spambots. You need JavaScript enabled to view it. |
| Past Pupils | Old Visakhians of NSW | Dr Dilmini Fernando | N/A | (02) 9484 5052 | This email address is being protected from spambots. You need JavaScript enabled to view it. |
| Miscellaneous | Operation Hope Inc | Charles Schokman | 6, Scarborough Drive, Narre Warren 3805 | (03) 9704 2207 | This email address is being protected from spambots. You need JavaScript enabled to view it. |
| Religious | Operation Hope Inc | | | | |
| Miscellaneous | OSLONU | Dr Ranjit Hettiarachi | 10, Barry Street, Kew 3101 | (03) 9853 2471 | N/A |
| Miscellaneous | Pahana Light & Life Magazine) | Mihirie Dissanayake | P. O. Box 256, Doveton 3177 | (03) 9011 9423 | This email address is being protected from spambots. You need JavaScript enabled to view it. |
| Cultural | Parramatta Sinhala School | Chinthaka Fonseka | N/A | (02) 9688 3071 | N/A |
| Past Pupils | Past Pupil's Presbyterian Girls School, Regent Street, Colombo | Marie Pietersz | N/A | N/A | This email address is being protected from spambots. You need JavaScript enabled to view it. |
| Past Pupils | Past Pupils Association of St Bridget's Convent, Colombo in Melbourne | Rushmini Perera | 89, Kearney Drive, Aspendale Gardens 3195 | 0417 770 333 | This email address is being protected from spambots. You need JavaScript enabled to view it. |
| Past Pupils | Past Pupils Girl's English High School, Mount Lavinia | Mrs Valerie Weerakoon | 10A, Evans Avenue, Hampton East 3188 | (03) 9553 2525 | This email address is being protected from spambots. You need JavaScript enabled to view it. |
| Miscellaneous | People For Human Rights & Racial Equality Inc (PHREE) - Shakthi | Dr Channa Wickremasekera | 12, Monash Place, Clayton 3168 | (03) 9548 8494 | This email address is being protected from spambots. You need JavaScript enabled to view it. |
| Social | Peradeniya Alumni & Friends | Donald Chandraratna | N/A | (08) 9383 1433 | This email address is being protected from spambots. You need JavaScript enabled to view it. |
| Religious | Perpetual Help Novena - Perpetual Help Church, Pascoe Vale | Rose Senn | 35, Coonans Road, Pascoe Vale 3044 | (03) 9386 2606 | N/A |
| Religious | Perpetual Help Novena - St Anthony's Church, Noble Park | Ryven Gunasekera | 3, Woolahara Avenue, Keysborough 3173 | (03) 9701 5496 | N/A |
| Religious | Perpetual Help Novena - St Scholastica's Church, Bennetswood | Joe Walles | 4, Kerferd Road, Glen Waverley 3150 | (03) 9560 1603 | N/A |
| Past Pupils | Presbyterian Girls School Old Girls | Ms Joan Dekker | 12/45, Wilson Street, Middle Brighton 3186 | (03) 9592 8485 | N/A |
| Religious | Queensland Buddhist Viharaya | Ven. Sitinamaluwe Sugathasara Thero | 62, Monterey Street, Wacol 4076 | (07) 3271 3110 | N/A |
| Miscellaneous | Radio 3CR - Tamil Voice (English Program) | Anthony Gratien | 21, Smith Street, Fitzroy 3065 | (03) 419 8377 | N/A |
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