In the world, Utaro (Utaro 
) is quite a common boy's first name. The forename Utaro is habitual in Japan, where it is quite a rare boy's name, and India, where it is an extremely rare female name.
Abe, Yokota, Shimizu, Senzaki, Komatsu, Kikuchi, Nishino, Ikegami, Yoshida, Yenokida, Maruyama, Miyazaki, Kawakami, Nakamura, Nakajima, Fujisaki, Watanabe, Yamamoto, Yamazaki, Mochizuki, Shiraishi, Takahashi, Tamura, Tanaka, Kojima, Borges, Doi, Ito, Ono, Ota, Mori, Sato, Devi, Noda, Hino, Miura, Nagashima, Saito, Koike, Nagai, Fujii, Inoue, Ishii, Ozeki, Matsuo, Matsui, Sasaki, Suzuki, Kanai, and Hashimoto