久保 Kubo 久保くぼ Kubo is a well-known surname, roughly within the top 150. Its kanji read as long time + protect. 印Save Hiraganaくぼ Katakanaクボ Romaji (Hepburn)Kubo Morae2 くぼ How commonFairly common The kanji 久long time保protect As a full name 久保 悠真Yuma Kubo久保 直美Naomi Kubo久保 恵美Emi Kubo久保 匠Takumi Kubo