Gurdwara Sri Tarn Taran Sahib is a gurdwara established by the fifth guru, Guru Arjan Dev, in the city of Tarn Taran Sahib, Punjab, India. The site has the distinction of having the largest sarovar (water pond) of all the gurdwaras. It is famous for the monthly gathering of pilgrims on the day of Amavas (a no-moon night).