In which country is Malay language spoken?

Malay is an Austronesian language spoken in Brunei, Indonesia, Malaysia and Singapore, as well as parts of Thailand. A language of the Malays, it is spoken by 290 million people across the Strait of Malacca, including the coasts of the Malay Peninsula of Malaysia and the eastern coast of Sumatra in Indonesia and has been established as a native language of part of western coastal Sarawak and West Kalimantan in Borneo.

The language is also used as a trading language in the southern Philippines, including the southern parts of the Zamboanga Peninsula, the Sulu Archipelago and the southern predominantly Muslim-inhabited municipalities of Bataraza and Balabac in Palawan.

Standard Malay, also called Court Malay, was the literary standard of the pre-colonial Malacca and Johor Sultanates, and so the language is sometimes called Malacca, Johor or Riau Malay (or various combinations of those names) to distinguish it from the various other Malayan languages. According to Ethnologue 16, several of the Malayan varieties they currently list as separate languages, including the Orang Asli varieties of Peninsular Malay, are so closely related to standard Malay that they may prove to be dialects.