Lachlan is a common name of Scottish origin, meaning "from the fjord-land." It is often used as a first name for boys and can also be a surname. The name has gained popularity in various English-speaking countries, including Australia and New Zealand. In addition to being a name, Lachlan is also the name of several rivers in Australia, notably the Lachlan River in New South Wales. This river is significant for its role in the region's agriculture and ecology, providing water for farming and supporting local wildlife.