National Route 466 (国道466号, Kokudō Yonhyaku roku-jurokugō) is a national highway in Japan connecting Setagaya and Hodogaya-ku, Yokohama, with a total length of 18.4 kilometers (11.4 mi).

A major part of the National Route 466 is known as the Daisan Keihin Road (第三京浜道路, Daisan Keihin Dōro), a limited access toll road connecting Tokyo and Yokohama.

In addition to its designation as National Route 466, the Daisan Keihin Road is signed as a part of E83 under the "2016 Proposal for Realization of Expressway Numbering".

[2] The toll road has three lanes traveling in each direction along the entire 16.6-kilometer (10.3 mi) route.

In short, the tolls average at a cost of 50 to 100 yen per exit.