What is is cox an irish name?

Yes, Cox is an Irish name. It is derived from the Gaelic word "Mac Conmhaoil" which means "son of the hound of loyalty". The name was originally found in the northern province of Ulster, and is now common throughout Ireland and Scotland. The Cox family is also found in many other countries around the world, with variations of the name including Coxon, Cocksedge, and Cockburn.