Surname Roberts-Slater (Roberts-Slater 
) , around the world, is an extremely rare cognomen. The cognomen Roberts-Slater is habitual in Northern America, particularly the United States, where it is an extremely rare surname. Parts of the name also exists independently as a last name Roberts, and a last name Slater.
| VARIANT | COUNTRY |
|---|---|
| Roberts-Slater | United States |