Lassi is a yoghurt-based drink of South Asia.

Lassi may also refer to:

• Lassi, Kefalonia, town in Kefalonia, Greece
• Lassi, Hiiu County, village in Emmaste Parish, Hiiu County, Estonia
• Lassi, Saare County, village in Salme Parish, Saare County, Estonia
• Lassi people, an ethnic group of Pakistan
• Lassi dialect, spoken in Pakistan
• Mehrullah Lassi, Pakistani boxer

• Laasi, a village in Estonia
• Lasi (disambiguation)
• Lassy (disambiguation)
• Lassie (disambiguation)