McGregor is a Scottish surname and given name, derived from the Gaelic MacGriogair, meaning 'son of Gregory'. It was traditionally a surname, but has also been used as a Christian name since the 19th century. The name McGregor became prominent due to the Highland Clearances in the late 18th and early 19th centuries, when many Scottish families were forced to emigrate, taking their names with them around the world. Today, it is found predominantly in Scotland, Canada, Australia, New Zealand, and the United States. Notable individuals with this name include the 16th-century Highland chieftain Gregor Roy MacGregor, upon whom Sir Walter Scott's novel 'Rob Roy' is largely based; Scottish-Canadian poet Archibald McGregor; and Australian rules footballer Jack McGregor.
"McGregor is a name that saw peak popularity in the late 1990s and early 2000s, with over 8 births per year from 1996 to 2003. However, it has remained consistent throughout the decades, showing at least one birth every year since 1983, totaling 103 births."