This article critically interrogates how in contemporary Irish political discourse anti-populism, specifically anti-left populism, is articulated as a form of anti-republicanism. This is large part due to the histories of anti-colonial republicanism in Ireland and the popular republican grammar they have bequeathed to contemporary political discourse. This thematic of (anti)populist politics is of renewed interest and urgency given the recent surge in popularity of Sinn Féin, a broadly left-wing republican populist party. This article adopts a discourse analytical method and identifies (...) several key tropes of anti-republican anti-populism that centre largely around the framing of Sinn Féin as a non-normative or not-normal political party, given its historical connection to paramilitarism. Other key themes of anti-republican anti-populism include the politics of housing, policing and the nature of democratic representation. What emerges is a picture of Irish republicanism as a spectral remainder of past political struggles against colonial order and political exclusion. As such, republican politics bring into view the contingency of established order and reveals the fragile nature of political legitimacy in post-partition Ireland. This article concludes by commenting on what the Irish postcolony reveals about the nature of anti-populisms in Europe and its peripheries. (shrink)