Anglo-Indian people fall into three different groups: people of mixed-race origin with Indian and British ancestry, people of unmixed Indian descent born or living in the United Kingdom, and people of unmixed British descent born or living in India. The latter sense is now mostly historical. People fitting the middle definition are more usually known as British Asian or British Indian. This article focuses primarily on the modern definition, a distinct minority community of mixed-race Eurasian ancestry, whose first language is ordinarily English.

British Indians are citizens of the United Kingdom (UK) whose ancestral roots are from India. Currently, the British Indian population exceeds 1.8 million people in the UK, making them the single largest visible ethnic minority population in the country. They make up the largest subgroup of British Asians and are one of the largest Indian communities in the Indian diaspora, mainly due to the Indian–British relations. The British Indian community is the sixth largest in the Indian diaspora, behind the Indian communities in the United States, Saudi Arabia, the United Arab Emirates, Malaysia and Nepal. The majority of British Indians are of Punjabi and Gujarati origin with various other smaller communities from different parts of India including Kerala, West Bengal, Bihar and Uttar Pradesh.