The Labour-Farmer Masses Party (労農大衆党, Rōnō-taishū-tō) was a political party in Japan.
It was founded in January 1929 by Mizutani Chozaburo, a former associate of the Labour-Farmer Party leader Oyama Ikuo.
Mizutani criticized Oyama Ikuo for being too open towards a merger with the centrist sectors of the socialist movement.
The Labour-Farmer Masses Party was largely confined to Kyoto.
[2] After the 1930 election the party changed its mind regarding unification with the other socialist groups and the party.