Surname Croch (Croch 
, Crux 
) , around the world, is a rare last name. The surname Croch is characteristic of Isle of Man, where it is quite a rare surname, El Salvador, and the Dominican Republic, where it is a rare surname. Measured by absolute frequency, this name is the most popular in the United Kingdom, the United States, and El Salvador. Very seldom, Croch is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Croch | Canada, France, Brazil, United States, Democratic Republic of the Congo |
| Crux | Germany, Dominican Republic, United Kingdom, United States, El Salvador |