This article investigates the ethnic entanglements of the land reform debate in the first Polish Diet (1919–1922). Against the backdrop of global comparative studies, interwar Poland, haunted by land hunger, rural poverty, and high concentration of land ownership, is an odd case. Despite conditions conducive to far-reaching land reforms, that is, a high level of inter-elite conflict and semiautocratic order, the Polish reform was very moderate, if not disappointing. Unpacking the series of moves in the debate and the sequence of hairbreadth voting on its shape, I ask why, despite broad acceptance of the reform across the political spectrum, it could not attract enough support to be swiftly executed. The ethnic composition of the country triggered controversies concerning German farmers and peasants of the ethnically diversified eastern borderlands. Major political parties shared tacit Polish nationalism, but the history of political alignments made the nationalist politicians susceptible to the lobbying of the landed elite and estranged them from peasant parties. The land holdings of nobles were considered a bulwark of the nation, which effectively blocked the alternative idea of integrating the ethnic minorities via land ownership.