Tamil Muslims (Tamil: தமிழ் முஸ்லிம்கள், tamiḻ muslimgal ?) are Tamil-speaking people with Islam as their faith. There are 3 – 4 million Tamil Muslims in India mostly in Tamil Nadu state and also in neighbouring Kerala and Karnataka. A significant Tamil-speaking Muslim population numbering 1.8 million or more live in the Northern and Eastern provinces and Colombo in Sri Lanka and many other pockets across central and southwest provinces, however they are listed as a separate ethnic group in official statistics. There are around 500,000 in Malaysia and 20,000 in Singapore. Tamil Muslims are largely urban traders rather than farmers. There is a substantial diaspora of Tamil Muslims, particularly in South East Asia, which has seen their presence as early as the 13th century. In the late 20th century, the diaspora expanded to North America and Western Europe. They are called Cholias in Myanmar, Mamak in Malaysia and Rathas in South Africa.
Tamil Muslims are identifiable and bonded only by a common language and religion. Otherwise, they belong to multiple ethnic backgrounds such as Dravidian, Aryan, Oriental and Semitic. Hence, their complexions range from fair to dark, facial bone structures range from sharp/oval to rounded. This was due to the frequent trading and miscegenation in South Asia. These races, by the 20th century, began to be listed as social classes in official gazettes of different nations as Lebbai, Marakayar, Rowther, Dekkani, Kayalar (in Maharashtra), Jawi Peranakan or Mamak in Malaysia, and Chulia (in Singapore)