"Southern Asia" may refer to the following regions of the Asian continent:Indian subcontinent, a physiographical region south of the Himalayas and bounded by the Indo-Burman Ranges to the east and the Hindu Kush to the west South Asia, a geopolitical region combining the Indian subcontinent with Afghanistan (SAARC) Southern Asia, a geographical subregion combining the Indian subcontinent with Afghanistan and Iran based on a common linguistic relationship