The Tōkai region (東海地方) is a geographic sub-region of Honshu, Japan, situated along the country's central Pacific coast. It encompasses major prefectures including Shizuoka, Aichi, Gifu, and Mie. Historically significant as a vital transit corridor connecting Tokyo (formerly Edo) to Kyoto via the ancient Tōkaidō road, the region is celebrated today for its heavy manufacturing, cultural heritage, and vibrant industrial output.