Family name Colless (Colless 
) , in the world, is a rare cognomen. The last name Colless is habitual in Australia, where it is quite a rare surname, New Zealand, where it is a rare surname, and Canada, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Colless | Australia, United Kingdom, Canada, United States, New Zealand |
|
donald henry colless Australian entomologist, AU (b. 1922) |
|
| rick colless Australian politician, AU (b. 1952) |
|
|
| matthew colless researcher (b. 1960) |
|