Naka-ku, Hamamatsu

is one of seven wards of Hamamatsu, Shizuoka, Japan, located in the central part of the city. It encompasses the site of Hamamatsu Castle and Hamamatsu Station, the central business district and a number of high density residential areas. Although its area is the smallest of the seven wards of Hamamatsu, it has the largest population. It is bordered by Higashi-ku, Kita-ku, Minami-ku, and Nishi-ku.