Statistics of Japanese Regional Leagues for the 1973 season.
Champions list Region ChampionsKantōFurukawa ChibaTōkaiHondaKansaiSumitomo MetalsChūgokuMazda Auto HiroshimaKyushuMitsubishi Chemical Kurosaki
League standings Kantō The 7th Kantō Adult Soccer League. (Shōwa 48)
Tōkai
With the expansion of the number of teams to 10 for the following 1974 season, the 7th and 8th places teams that would normally be relegated, stayed in the division.
Kansai
Chūgoku This was the 1st edition of the Chūgoku Football League.
Kyushu This is the 1st edition of the Kyushu Football League Division
Promotion/relegation playoff