You may think there would not be many names relating to barrels or barrel-making. However, a few names, besides Cooper mean barrel or barrel maker. Cade is an English name that means round or barrel. It shares similar popularity as Cooper, being most popular in the 21st century.
Kiefer is a German boy’s name that means barrel maker or pine. The name is derived from the old Germanic words Kien and forge, which both mean pine tree. Like Cooper, Kiefer started as a surname given to barrel makers. Over time, the name evolved into a first name.