Throughout the world, Slingsby (Slingsby 
) is a very rare masculine first name. The first name Slingsby is habitual in Sub-Saharan Africa, particularly South Africa, where it is a very rare boy's name. Much more prevalently, Slingsby is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Slingsby | Australia, South Africa, Canada, United Kingdom, United States |
| guilford slingsby member of the Parliament of Ireland (b. 1610) |
|