Among all Makran coastlines, the southeastern coastline of Iran is exposed to most of the hazard from possible future tsunamis generated by the Makran subduction zone. Tsunami hazard assessment using the probabilistic approach is a useful and effective tool to investigate hazard for future tsunamis. In this study, the probabilistic tsunami hazard for the southeastern coast of Iran is assessed using the results of tsunami numerical simulations. The entire Makran subduction zone, the western Makran and the eastern Makran are considered as tsunamigenic sources. Konarak and Sirik coastlines are posed to the most and least hazard from tsunamis. The probability that tsunami wave height exceeds 3 meters in 500 years is about 0.63 and 0 near the coastlines of Konarak and Sirik, respectively. The results indicate the need of attention to tsunami long-term hazard along the southeastern coast of Iran, especially for the area between Jask and Beris.