MacCoinnich is a Scottish surname that translates to "son of Coinneach," with Coinneach meaning "handsome" or "comely" in Gaelic. The name is often associated with the Highlands of Scotland and has historical ties to various clans, particularly the MacKenzies and MacLeods. The MacCoinnich family has roots in the Gaelic-speaking regions, and members have played roles in Scottish history, including military and political positions. Today, the name is still found in Scotland and among the Scottish diaspora, reflecting the enduring legacy of Scottish heritage.