The name Mcclellan is of Scottish origin and is predominantly used as a male name. It is believed to be derived from the Gaelic surname "Mac Gille Fhaolain," meaning "son of the servant of St. Fillan." The American English pronunciation of Mcclellan is muh-KLEL-uhn (məˈklɛlən). It is interesting to note that the name has variations, with McLellan being an alternative spelling. In terms of popularity in the United States, the name Mcclellan has seen some fluctuation over the years. It ranked 9th in 1941 and 5th in both 1940 and 2008. While it may not be as commonly used today, Mcclellan holds a sense of history and uniqueness that can make it a distinctive choice for parents seeking a traditional yet uncommon name for their baby boy.