Allen is a common given name for males, derived from the Gaelic name Ailin, which means "little rock" or "harmony." It is widely used in English-speaking countries and has various spellings and variations, such as Alan and Alain. The name has been popular for centuries and is often associated with notable figures in history, literature, and entertainment. In addition to being a name, Allen can also refer to several places, such as Allen, Texas, a city in the United States. There are also various businesses and organizations that include "Allen" in their name, reflecting the name's widespread recognition and usage across different contexts.