\n Recent research argues that authoritarianism exists on the right and left, further positing that both manifestations share core features. We explore this possibility by conducting a latent profile analysis of left-wing authoritarianism (LWA), right-wing authoritarianism (RWA), and social dominance orientation (SDO) in a nationwide random sample of adults (N = 34,101). Five unique profiles emerged: Low Social Dominators (low-to-moderate LWA/RWA, low SDO; 41.8% of the sample), Moderate Right-wing Authoritarians (low LWA, moderate RWA, low-to-moderate SDO; 35.7% of the sample), Moderate-Moderates (low LWA, moderate RWA, moderate SDO; 13.7% of the sample), Left-wing Authoritarians (high LWA, low RWA/SDO; 7.5% of the sample), and High Social Dominators (low LWA, low-to-moderate RWA, high SDO; 1.34% of the sample). Men, people low in agreeableness, and people high in vengeful rumination were more likely to belong to all profiles (compared to the Low Social Dominators), suggesting some similarities across distinct forms of authoritarianism. Left-wing Authoritarians did, however, differ substantively in their demographic characteristics, personality, and social attitudes, undermining claims of a shared authoritarian core. These findings highlight the need to further evaluate how distinct types of authoritarians manifest across the political spectrum and the utility of the common core hypothesis.Researchers suggest that (a) authoritarians exist on both the political left and right, and (b) these different “types” of authoritarians are similar in personality and intolerance toward opposing groups. In this paper, we examine these possibilities by examining the prevalence of different forms of authoritarianism in a nationally representative sample of New Zealand adults. We test whether these groups share similar (versus different) demographics (e.g., age and gender), personality traits, trust in institutions, voting intentions, and attitudes toward different social issues. Our results suggest that the majority of the population is low on authoritarianism. However, we identified a small group that scored highly on left-wing authoritarianism (named Left-wing Authoritarians) and another small group that highly endorsed group-based hierarchies and inequality (named High Social Dominators). Younger, non-religious, more liberal people, and people living in deprived areas were more likely to be Left-wing Authoritarians. In contrast, older conservative people were more likely to be High Social Dominators. These groups also differed in personality and attitudes toward institutions, political parties, and social issues. Overall, our study suggests that authoritarians on the left and right are more different than similar. For this reason, it is important to consider different types of authoritarians as distinct from each other in the population rather than two sides of the same coin. [ABSTRACT FROM AUTHOR]