In the 2nd half of nineteenth century, when the Pan-Islamism ideology as the way out of Islamic world’s straits was formed in the mind of some Islamic world’s thinkers, some of Iranian thinkers joined the issue, as well. Mostly influenced by the ideologies particularly were Istanbul-resident Iranians intellectuals and thinkers who, oppressed by authoritarians of Iran, had taken refuge in Istanbul and started living there. Among them, Mirza Agha Khan Kermani and his inseparable fellow, Sheikh Ahmad Rouhi, had an (...) interesting yet bitter adventure. Despite having non-religious ideological background, they were attracted toward Pan-Islamism, acted whole-heartedly and sacrificed themselves for it.Using the remaining works by the two characters and other sources of that time, this study tried to recognize their roles in the movement of Pan-Islamism. (shrink)