The Meru (waMeru), also known as the Rwa, are a Meru-speaking Tanzanian ethnic and linguistic group native to the slopes of Mount Meru in Arusha Region. The Meru people share the same name with the Meru people of Kenya, but they are completely different ethnic groups each with their own unique history and identity.
The waMeru people are said to have arrived to the slopes of the great mountain around 800 years ago coming from the Usambara Mountains in Tanga Region. Upon arriving at the southeastern slopes of Mount Meru they were met by the hunter-gatherer group called the Koningo whom they absorbed into Meru society. The waMeru are known for their intensive agricultural practises.