The Asaina-kiridoshi is an ancient passageway located between Junisho in Kamakura, and Kanazawa-gun in Yokohama, both in Kanagawa Prefecture. The passageway is designated a National Monument.

In Kamakura, there are many passageways for defensive purposes called kiridoshi. The Asaina-kiridoshi connects Kamakura with Kanazawa and Rokuura, and is said to be one of the seven greater kiridoshi in Kamakura.

The name Asaina-kiridoshi comes from Yoshihide Saburo Asaina who, during the 2nd year of the Ninji era (1241) and under the command of Masatoki Hojo, was said to have built the road in a single night.

The road was constructed during a time of dispute between the Hojo and Miura clans. The Hojo clan was in need of a road connecting with the Rokuura port, and leading to Boso without passing through the Miura Peninsula.

The Asaina-kiridoshi still retains its distinct historical atmosphere, and reminds those who walk on it of the culture and life of the Kamakura period.