In all the world, Shaantanu (Shaantanu 
) is a very rare masculine forename. The first name Shaantanu is characteristic of Southern Asia, particularly India, where it is an extremely rare male name.
Dey, Marwadkar, Sarangi, Chandel, Bhakuni, Rastogi, Dhanraj, Gaikwad, Banerjee, Bhardwaj, Kurdukar, Kulkarni, Deshmukh, Tadpatrikar, Chaudhary, Jalandria, Pandey, Srivastava, Pandit, Sharma, Das, Show, Raut, Dabi, Gaur, Jain, Malik, Singh, Sinha, Kumar, Patil, Donde, Joshi, Nevgi, Mathur, Shende, and Bhattacharya