The article critically examines how Türkiey justifies its proactive foreign policy through the concept of justice. The study analyzes Turkish discourse, blending Islamic teachings with an anticolonial stance, to characterize the understanding of justice. Initially used to legitimize opposition against secular elites, justice now serves as a tool for global leadership, mediation in conflicts involving Muslims, and regional focus on post-Ottoman states. It counters political opponents, gains negotiating advantages in EU accession talks, supports aspirations for a UN Security Council seat, and extends military presence beyond the region. The study concludes that justice grants moral legitimacy to Türkiye’s foreign policy decisions, particularly resonating with Muslim audiences.Rooted in Islamist principles and an anticolonial discourse, Türkiye positions itself as a just leader opposing historical oppression by the West. The concept of justice is crucial in shaping Türkiye’s foreign policy, establishing its authority as a just and moral actor internationally. By leveraging justice, Türkiye aims to assert leadership, mediate conflicts, and prioritize historically significant regions. Understanding the ideologeme of justice provides insights into Türkiye’s strategic decision-making and its aspiration for a just and influential role globally.