Three official languages are prescribed by the constitution: English, which was introduced by the former British colonial rulers, Bau Fijian, spoken by ethnic Fijians, and Hindustani, the main language spoken by Indo-Fijians. Citizens of Fiji have the constitutional right to communicate with any government agency in any of the official languages, with an interpreter to be supplied on request.

The use of English is one of the most enduring legacies of almost a century of British rule. Widely spoken by both ethnic Fijians and Indo-Fijians, English is the main medium of communication between the two communities, as well as with the outside world. It is the language in which the government conducts most of its business, and is the main language of education, commerce, and the courts.

Fijian belongs to the Austronesian family of languages. Fijian proper is closely related to the Polynesian languages, such as Tongan. There are many dialects, but the official standard is the speech of Bau, the most politically and militarily powerful of the many indigenous kingdoms of the 19th Century.

“Hindustani” is considered an umbrella term in India for the standard languages Hindi (preferred by Hindus) and Urdu (preferred by Muslims), as well as many closely related tongues that are sometimes considered separate languages. Fijian Hindustani descends from one of the eastern forms of Hindustani, called Awadhi. It has developed some unique features that differentiate it from the Awadhi spoken on the Indian subcontinent, although not to the extent of hindering mutual understanding. It is spoken by nearly the entire Indo-Fijian community regardless of ancestry, except for a few elders.

In addition to the three official languages, several other languages are spoken. On the island of Rotuma, Rotuman is used; this is more closely related to the Polynesian languages than to Fijian. Some Fijian dialects, especially in the west of the country, differ markedly from the official Bau standard, and would be considered separate languages if they had a codified grammar or a literary tradition. Among the Indo-Fijian community, there is a small Gujarati-speaking community, and a few older Indo-Fijians still speak Telugu and Tamil, with smaller numbers of Bihari, Bengali, and others.

In the Fijian alphabet, some of the letters have unusual values. For one, the “c” is a voiced “th” sound, [ð]. (For example, the name of Fiji-born New Zealand rugby player Joe Rokocoko is often mis-pronounced. The correct pronunciation is IPA: [r?k?'ð?k?].) Another difference is that the letters “b” and “d” are always pronounced with a nasal before them, [mb, nd], even at the beginning of a word. The “q” is pronounced like a “g” with a nasal “ng” before it, [?g] as in the word “finger”, while the “g” is pronounced like the “ng” of the word “singer”, [?].