Across the world, Duczkowski-Oxley (Duczkowski-Oxley 
) is an extremely rare unknown gender forename. Much more frequently, Duczkowski-Oxley is the last name as well as the forename. Parts of the name also exists independently as a first name Duczkowski, and a last name Oxley.
| VARIANT | COUNTRY |
|---|---|
| Duczkowski-Oxley | United States |