Family name Kačo (Kačo 
) , throughout the world, is a very rare cognomen. The family name Kačo is habitual in Eastern Europe, particularly Czechia, where it is a rare surname.
| ludevít kačo CZ (b. 1919) |
|
|
| jiří kačo CZ (b. 1958) |
|
|
| martin kačo Slovak diplomat, SK (b. 1971) |
|