All over the world, Tongdo (Tongdo 
) is an extremely rare boy's first name. Much more frequently, Tongdo is the last name as well as the forename.
Roy, Sabina, Simeon, Sisafe, Amparo, Ronald, Joseph, Johnny, Jerwin, Jullen, Tomasa, Nellie, Esther, Emilia, Eugene, Marcial, Antonio, Arsenio, Cecilia, Balinan, Bernard, Jonimar, Milita, Melody, Manolo, Marvin, Jun, Alex, Rosa, Dary, Leah, Juan, Noel, Marta, Ariel, Arlyn, Jenilyn, Arden, Cesar, Babby, Delia, Dal-Oy, Jeric, Norma, Elvie, Elgie, Helen, Venus, Carol, and Jeffrey