is a town located in Oshima Subprefecture, Hokkaido, Japan. In April 2017, the town had an estimated population of 28,514, with 13,639 households, and a population density of . The total area is .
Nanae is at the southern end of the Oshima Peninsula, about away from Hakodate. The name of is derived from two former villages, and
, a stratovolcano, is the highest mountain in the town, located on the town's boundary with Mori and Shikabe.
Part of the , including the (大沼) and Konuma (å°Âæ²¼) ponds, is located within the town boundaries of Nanae.
Nanae is served by the JR Hokkaido Hakodate Main Line, which links Hakodate with Sapporo and Asahikawa.
Formerly, Sawara Branch Line also ran through the town. Ikedaen, Nagareyama Onsen, and Chà Âshiguchi station, three of the stations on the branch line, closed on 12 March 2022.
Stations of the rail lines located in the town are as the following:
National Route 5, a major highway in the prefecture, runs through the town, connecting it to Hakodate and the rest of Hokkaido, including Otaru and Sapporo.