Throughout the world, Fulgen (Fulgen 
) is a rare predominantly masculine, but very infrequently feminine first name. The forename Fulgen is characteristic of Qatar, where it is quite a rare boy's name, Saudi Arabia, where it is a rare male name, and Spain, where it is a very rare unisex name. Not in comparison with a country's population, it is the most numerous in India, Saudi Arabia, and Qatar. Much less frequently, Fulgen is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Fulgen | Saudi Arabia, Philippines, Spain, India, Qatar |
Sah, Toppo, Yadav, Mandal, Manjhi, Mahato, Bolarín, Bhagat, Pandit, Paswan, Pasvan, Pérez, Garcia, Ludony, Thakur, Mukhiya, Sanchez, García, Niñofranco, Ofranco, Martinez, Prajapati, Llona, Gutierrez, Lopez, Gomez, Pal, Ram, Das, Sada, Shah, Agbo, Cruz, Raut, Ralo, Ruiz, Orao, Majhi, Sahni, Singh, Kurmi, Kumar, Kbani, Patel, Perez, Ponce, Rubio, Genao, and Sánchez Ruiz