Other
- Hon. Pradeep Nilanga Dela Bandara - Diyawadana Nilame (Chief Lay Head or Trustee) of the Kandy Temple of the Tooth
- Mahesh Asanka de Zoysa - public protester
- Dr Harischandra Wijayatunga - President of Sinhalaye Mahasammatha Bhoomiputra party
- Dr Sarath Gunapala - Senior Research Scientist, Principal Member of the Engineering Staff & Manager Jet Propulsion Laboratory National Aeronautics and Space Administration NASA USA, Former Scientist Bell Laboratories USA
- Dr Sumith Bandara - Research Scientist, Principal Member of the Engineering Staff & Manager Jet Propulsion Laboratory National Aeronautics and Space Administration NASA USA
- P. M. Jayatillake - former Principal of Thurstan College, Colombo, founder Principal of Ibbagamuwa Central College
- P.H.D Waidyatilleka - Reputed Civil Engineer, Chairman Technical Committee Asian Masters Athletics, first Sri Lankan to be appointed as an International Technical Officer (ITO) by International Association of Athletics Federations (IAAF), Only Sri Lankan to qualify as an IAAF Lecturer
- Indrani Iriyagolla - renowned humanitarian activist
Read more about this topic: List Of Nalanda College Colombo Alumni