Glenn is a common male given name that has origins in Gaelic, meaning "valley." It is often used in English-speaking countries and can be found in various cultures. The name has been popularized by several notable figures, including Glenn Close, a renowned actress, and John Glenn, an American astronaut and politician. In addition to being a name, Glenn can also refer to geographical features, such as valleys or glens, which are typically narrow and surrounded by hills. These natural formations are often found in regions with rolling landscapes, contributing to the beauty of the countryside.