Sissu is a small town in the Lahaul valley of Himachal Pradesh in India. It is around 40 km from Manali and located on the right bank of Chandra river. It is located at 32°29′0″N 77°7′0″E. It is 3,120 m above sea level. It is 14 km from Koksar to the south-east and 11 km. west to Gondhla.