Based on the provided source material, Zaha is not identified as a city in Japan. Instead, it is primarily recognized as a surname and a given name shared by several notable individuals across different fields.
Notable people with this name include Romanian footballer Alin Zaha, Ivorian-English footballer Wilfried Zaha, and Maldivian politician Zaha Waheed. Additionally, the name is associated with the late architect Zaha Hadid (1950–2016) and a fashion brand founded by Pakistani designer Khadijah Shah.