Bahasa is the Malay and Indonesian word for "language", which derives from the Sanskrit word भाषा bhāṣā "spoken language". In many modern languages in South Asia and Southeast Asia which have been influenced by Sanskrit or Pali, bahasa and cognate words are now used to mean "language" in general.
It may refer to:
- The Indonesian language, or Bahasa Indonesia
- The Malay language, or Bahasa Melayu
- The Javanese language, or Basa Jawa, also Basa Jawi
- The Sundanese language, or Basa Sunda
- The Balinese language, or Basa Bali
- The Tausug language, or Bahasa Sūg
- The Betawi language, or Bahasa Betawi
- The Cia-Cia language, or Bahasa Ciacia (바하사 찌아찌아)
- The Khmer language, or Phiesa Khmae (ភាសាខ្មែរ)
- The Lao language, or Phasa Lao (ພາສາລາວ)
- The Thai language, or Phasa Thai (ภาษาไทย )
- The Burmese language, or Myanma bhasa (မြန်မာဘာသာ)
- Malaysian Sign Language, or Bahasa Isyarat Malaysia
- Kod Tangan Bahasa Malaysia (Malay language Hand Code), or Bahasa Malaysia Kod Tangan Bahasa
- Bahasa Rojak, a form of code-switching
- Indonesian slang, sometimes referred to as Bahasa gaul or Bahasa prokem