Thirty candidates were selected for the National Chemistry Olympiad Examination 2023 from the Preliminary Selection Examination which was held on 19th February 2023. The National Chemistry Olympiad Examination will be held in April 2023. National level Gold, Silver, and Bronze medal winners will be recognized at the Annual Sessions of the ICHEMC. Also, the best four students will be selected to represent Sri Lanka at the International Chemistry Olympiad which will be held in Zurich – Switzerland 2023.
| Angulugaha Gamage Dineth Dilwan Gamage | Royal College, Colombo |
| Arani Ramesh | Ramanathan Hindu Ladies College, Colombo |
| Ashen Umendra Perera | Dharmaraja College, Kandy |
| Balasooriya Mudiyanselage Sachithra Bandara Hindagolla | Maliyadeva College, Kurunegala |
| Bhagya Poorni Jayasinghe | Maliyadeva Balika Vidyalaya, Kurunegala |
| Don Nipun Dinuka Adikari | De Mazenod College, Kandana |
| Dulyana Apoorva Wanigasooriya | Thurstan College, Colombo |
| Endera Arachchige Sandini Vihanga | Visakha Vidyalaya, Colombo |
| Isitha Dinujaya Arachchi | Ananda College, Colombo |
| Janith Vishula | Dharmaraja College, Kandy |
| Janithya Sanathmi Rajasekara | Maliyadeva Balika Vidyalaya, Kurunegala |
| Kannan Bavithran | Jaffna Hindu College, Jaffna |
| Kuragodage Thisarindu Adeepa Lakshan | Richmond College, Galle |
| Lasan Sanjula Perera | Ananda College, Colombo |
| Nesith Lakvindu Hettiarachchi | Ananda College, Colombo |
| Nethmi Nureka Moragoda | Devi Balika Vidyalaya, Colombo |
| Nirmala Dhamma Warushavithana | Royal College, Colombo |
| Rajapaksha Koralalage Januli Divanjana Caldera | Lyceum International School, Panadura |
| Robolge Pahanma Upani Lenora | Sanghamiththa Balika Vidyalaya, Galle |
| Senumi Nudara Weerackody | Visakha Vidyalaya, Colombo |
| Sithupa Danithu Nethmina Palihawadana | Royal College, Colombo |
| Sriskandarajah Aswethan | S.Thomas’ College, Mount Lavinia |
| Sudam Kovida Munasinghe | Richmond College, Galle |
| Thanuri Dahamsa Weerasinghe | Lyceum International School, Nugegoda |
| Thisura De Alwis | S.Thomas’ College, Mount Lavinia |
| Thuvarahan Chandrakumar | S.Thomas’ College, Mount Lavinia |
| U.A.Githma Himakara | Richmond College, Galle |
| Uthayakumar.Kamshagini | Arunodaya College, Jaffna |
| Vithyashakar Anandajothy | Jaffna Hindu College, Jaffna |
| Yehan Sandes Jayasuriya | Royal College, Colombo |
