Maritime Southeast Asia
Maritime Southeast Asia refers to the maritime region of Southeast Asia as opposed to mainland Southeast Asia. Six states make up the region, namely, Malaysia, the Philippines, Brunei, East Timor,  and Indonesia. Maritime Southeast Asia is sometimes also referred to as "Island Southeast Asia" or Insular Southeast Asia. The nineteenth century term, "Malay Archipelago", refers to a largely similar area.
Cultural identity 
The cultural identity of the region is seen as part of 'Farther India' or Greater India, as seen in Coedes' 'Indianized states of Southeast Asia', which refers to it as 'Island Southeast Asia'; while other authorities see it is as partly (or heavily, in the case of Singapore) sinicised, and yet others even suggest its own identity within Austronesia or Oceania.
Over 350 million people live in the region, with the most populated island being Java. The people living there are predominantly from Austronesian subgroupings and correspondingly speak western Malayo-Polynesian languages. This region of Southeast Asia shares more social and cultural ties with other Austronesian peoples in the Pacific than with the peoples of Mainland Southeast Asia. The main religions in this region are Islam, Christianity, Buddhism, Hinduism and traditional Animism.
See also 
- Tarling, Nicholas (1999). The Cambridge history of Southeast Asia, Volume 1, Part 1 (2nd ed.). Cambridge University Press. p. 304. ISBN 0-521-66369-5.; RAND Corporation. (PDF);Shaffer, Lynda (1996). Maritime Southeast Asia to 1500. M.E. Sharpe. ISBN 1-56324-144-7.; Ciorciar, John David (2010). The Limits of Alignment: Southeast Asia and the Great Powers Since 197. Georgetown University Press. p. 135.
- Coedes, G. (1968) The Indianized states of Southeast Asia Edited by Walter F. Vella. Translated by Susan Brown Cowing.Canberra : Australian National University Press. Introduction... The geographic area here called Farther India consists of Indonesia, or island Southeast Asia....
- see the cultural macro-regions of the world table below
- Art of Island Southeast Asia, a full text exhibition catalog from The Metropolitan Museum of Art