Buchanan is a traditional Scottish surname that originated from the ancient Celtic language. It means 'house of the canon' in Gaelic, suggesting a connection to the church. The Buchanan clan has a rich history and played a significant role in Scottish politics and military affairs. Members of the clan were known for their loyalty and fierce determination in battle. Today, the name Buchanan is still proudly carried by many individuals around the world, symbolizing strength, resilience, and a strong sense of heritage.