Cognomen Kumarasingham (Kumarasingham 
) , globally, is a very rare last name. The last name Kumarasingham is habitual in Malaysia, where it is a very rare surname, Australia, and the United Kingdom, where it is an extremely rare surname. Much more prevalently, Kumarasingham is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kumarasingham | United Kingdom, Sri Lanka, Malaysia, Australia, United States |
| harshan kumarasingham reseacher in New Zealand |
|