Cognomen Sanku (Sanku 
) , in the entire world, is a common last name. The family name Sanku is characteristic of India, where it is quite a rare surname, United Arab Emirates, where it is a rare surname, and Oman. Not in comparison with a country's population, it most frequently occurs in India, United Arab Emirates, and Saudi Arabia. Also, Sanku is the forename as well as the last name.