Cognomen Yeon-Sik (연식 
, Yeon-Sik) , across the world, is an extremely rare last name. Much more prevalently, Yeon-Sik is the forename as well as the last name. Parts of the name also exists independently as a last name Yeon, and a last name Sik.
| VARIANT | COUNTRY |
|---|---|
| 연식 | South Korea |