- 东南亚 dōngnányà Southeast Asiathe southeastern region of Asia, including countries such as Vietnam, Thailand, Malaysia, Singapore, and Indonesia
- 东南亚国家联盟 dōngnányàguójiāliánméng ASEANAssociation of Southeast Asian Nations; an international political and economic organization established in 1967.
- 西南亚 xīnányà Southwest AsiaSouthwest Asia; the region including countries like Afghanistan, Iran, Turkey, and those on the Arabian Peninsula
- 东南亚国家协会 dōngnányàguójiāxiéhuì ASEANAssociation of Southeast Asian Nations, an intergovernmental organization comprising ten Southeast Asian countries
- 南亚区域合作联盟 nányàqūyùhézuòliánméng South Asian Association for Regional CooperationSouth Asian Association for Regional Cooperation; SAARC
- 南亚大草莺 nányàdàcǎoyīng Indian grassbirdthe Indian grassbird (Graminicola bengalensis), a species of bird native to South Asia
- 南亚次大陆 nányàcìdàlù South Asian Subcontinentthe subcontinent of South Asia, primarily consisting of the Indian Peninsula
- 南亚美利加洲 nányàměilìjiāzhōu South America
- 东南亚国协 dōngnányàguóxié ASEAN(Taiwan usage) Association of Southeast Asian Nations; a regional international organization for political and economic cooperation