NHK Radio 1 (NHKラジオ第1放送, NHK Rajio Dai-ichi Hōsō), known by its callsign NHK AM, is Japan's oldest radio station operated by the public broadcaster, NHK.

Its programming output, which consists of news, current affairs, and information is broadly similar to the BBC's Radio 4 in the United Kingdom, National Public Radio in the United States, CBC Radio One in Canada and Deutschlandfunk in Germany.

The callsign is JOAK in Tokyo.

During World War II, it often broadcast official announcements.

This article about a Japanese radio station is a stub.