The Indo-European language family, with branches such as Indo-Aryan and Iranian, is widely spoken in the Indian Ocean Region, including India, Pakistan, Iran, and Sri Lanka.

Hindi, an Indo-Aryan language, is the most commonly spoken language in the Indian Ocean Region, with a large population of speakers in India and neighboring countries.

The Austronesian language family, originating in Southeast Asia, is the native language family of Madagascar, with Malagasy being the most widely spoken language on the island.

English is the official language of Mauritius, a legacy of British colonial rule, although French and Creole are also widely spoken.

Swahili, a Bantu language, belongs to the Niger-Congo language family, which is widely spoken in sub-Saharan Africa.

Dhivehi, the language of the Maldives, has Indo-Aryan roots, with influences from Arabic and Dravidian languages.

Tamil is a Dravidian language, belonging to a distinct language family originating in South India.

Creole languages in the Indian Ocean Region, such as Mauritian Creole and Seychelles Creole, have roots in Niger-Congo languages, with influences from European languages.

Persian, also known as Farsi, belongs to the Indo-European language family, with its roots in ancient Iranian languages.

Maldivian Sign Language has roots in Indo-Aryan languages, with influences from Arabic and Dravidian sign languages.

Somali belongs to the Afro-Asiatic language family, which includes languages spoken in North Africa, the Middle East, and the Horn of Africa.

Odia, also known as Oriya, is an Indo-Aryan language, belonging to the Eastern Indo-Aryan branch.

Sinhala belongs to the Indo-European language family, specifically the Indo-Aryan branch, and is closely related to other Indo-Aryan languages of the Indian subcontinent.

Comorian, also known as Shikomori, belongs to the Niger-Congo language family, specifically the Bantu branch, and is closely related to other Bantu languages spoken in East Africa.

Gujarati belongs to the Indo-European language family, specifically the Indo-Aryan branch, and is closely related to other Indo-Aryan languages spoken in the Indian subcontinent.