This is a list of known languages.

• Ancient
• Asgard
• Earth languages
  • Ancient Celtic
  • Ancient Egyptian
  • Ancient Greek
  • Ancient Salish
  • Czech
  • English
  • Golap
  • Latin
  • Mandarin
  • Mayan
  • Norse
  • Phoenician
  • Russian
  • Spanish
• Goa'uld
• N'ahuatl
• Nox
• Ohnes
• Old Saxon
• Rillaanian
• Samoyed
• "Spirit"
• Terellan
• Teneeze
• Tollan
• Unas
• Volsinii
• Wraith

See also the alphabetic list of languages.