Surname Łącz (Łącz 
, Лонч 
) , worldwide, is a rare family name. The cognomen Łącz is habitual in Eastern Europe, particularly Poland, where it is a rare surname, Ukraine, where it is an extremely rare surname, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Łącz | Poland |
| Лонч | Russia, Ukraine |
|
laura łącz Polish actress, PL (b. 1954) |
|
| marian łącz Polish association football player and actor (1921-1984), PL (b. 1921) |
|
|
| iwona łącz Female polish handball player, PL (b. 1969) |
|