In all the world, Tonggo (Tonggo 
) is a rare epicene first name. The first name Tonggo is habitual in South-eastern Asia, particularly Indonesia, where it is a rare gender-neutral name. Much less frequently, Tonggo is the last name as well as the forename.
As, Hadibroto, Herlina, Manurung, Meiriance, Silalahi, Sibarani, Siburian, Ambarita, Parulian, Pangidoan, Pasaribu, Pakpahan, Tambunan, Herwanto, Magdalena, Sinambela, Silitonga, Panjaitan, Hutabarat, Situmorang, Simangunsong, Nababan, Nadapdap, Girsang, Romauli, Leo, Tua, Tiur, Manik, Malau, Purba, Oscar, Marito, Marbun, Munthe, Pangaribuan, Sinaga, Azhari, Kuleng, Rohani, Tambun, Tagduka, Martina, Sitorus, Siahaan, Soebroto, Pardede, Sirait, and Roethlisberger