The Maasai (sometimes spelled "Masai") are a Nilotic ethnic group of semi-nomadic people inhabiting southern Kenya and northern Tanzania. They are among the best known local populations due to their residence near the many game parks of Southeast Africa, and their distinctive customs and dress. The Maasai speak Maa (ɔl Maa), a member of the Nilo-Saharan language family that is related to Dinka and Nuer. They are also educated in the official languages of Kenya and Tanzania, Swahili and English. The Maasai population has been reported as numbering 841,622 in Kenya in the 2009 census, compared to 377,089 in the 1989 census.
The Tanzanian and Kenyan governments have instituted programs to encourage the Maasai to abandon their traditional semi-nomadic lifestyle, but the people have continued their age-old customs. Recently, Oxfam has claimed that the lifestyle of the Maasai should be embraced as a response to climate change because of their ability to farm in deserts and scrublands. Many Maasai tribes throughout Tanzania and Kenya welcome visits to their village to experience their culture, traditions, and lifestyle.