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Surname Iwa (Iwa , Ива , イワ ) , around the globe, is quite a common last name. The surname Iwa is habitual in the Democratic Republic of the Congo, where it is quite a rare surname, Papua New Guinea, and Serbia. Not in comparison with a country's population, the name is most common in Japan, the Democratic Republic of the Congo, and Indonesia. Predominantly, Iwa is the forename as well as the last name.
Abe, Kustiwa, Hayashi, Iwasaki, Yoshida, Maruyama, Sakamoto, Takayama, Nakamura, Nakayama, Nakagawa, Nakajima, Hasegawa, Ishikawa, Watanabe, Yamamoto, Yamazaki, Yokoyama, Matsumoto, Kobayashi, Takahashi, Hashimoto, Kartiwa, Shimizu, Yamada, Tanaka, Ito, Ono, Oya, Mori, Sato, Kato, Devi, Goto, Vati, Maeda, Yamashita, Saito, Inoue, Ishii, Ikeda, Ogawa, Oishi, Sasaki, Suzuki, Koyama, Kimura, Daisen, Sagar, and Yamaguchi