There is a heightened interest concerning the understanding of prejudice toward Muslims in Europe, steadily increasing since 2001. This study aimed at investigating whether the phenomenon of Islamophobia could have two different manifestations (i.e., Islamoprejudice and Secular Critique of Islam). In particular, we assessed whether two social attitudes, Right-Wing Authoritarianism (RWA, i.e., authoritarian aggression, and conservatism) and Social Dominance Orientation (SDO), could predict differently the two dimensions. Moreover, we wanted to investigate the different influence of the two dimensions in relation to the perceived threat from terrorism. A sample of 366 Italian adults participated in the study completing a self-report questionnaire. Data were analyzed by means of a structural equation model. Results showed that RWA and SDO were differently related to Islamoprejudice and Secular Critique of Islam, suggesting that certain forms of critique of Islam should not be associated with individual prejudice, because motivated only by secular, democratic, and universalistic convictions, denoting the traces of cultural biases. However, the nonprejudicial and apparently less problematic dimension of Islamophobia, that is, Secular Critique, does not preserve people from perceiving the threat from terrorism, in the same way as Islamoprejudice. Implications are discussed.