In Scotland, Martin or McMartin is a common surname of Scottish Gaelic origin. Martin is, however, more common as a masculine given name in many languages and cultures. It comes from the Latin name Martinus, which is a late derived form of the name of the Roman god Mars, the protective godhead of the Latins and, therefore, the god of war. [1]
https://en.m.wikipedia.org/wiki/Martin_(name)