Last name Sliupas (Sliupas 
) , throughout the world, is a very rare family name. The surname Sliupas is habitual in Lithuania, where it is quite a rare surname, Germany, where it is an extremely rare surname, and the United Kingdom. In absolute terms, it most frequently occurs in Lithuania, Germany, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Sliupas | Lithuania, Germany, United States, United Kingdom |