Ittifaq al-Muslimin (The Union of the Muslims; Tatar: Иттифак әл-мөслимин, İttifaq âl-Möslimin, Russian: Иттифа́к аль-Муслими́н) was a liberal-democratic party of Muslims in Russian Empire. The party was formed after The First Congress of Muslims of Russia and the party line was similar to Kadets. It was dominated by Volga Tatar intellectuals, but also included Azeri and Crimean Tatar representatives.
The main elements of Ittifaq's program were constitutional monarchy, recognition of democratic freedoms, distribution of state available land and landowners' redeemable land to peasants, equality of religions, restitution of mosques and madrassas belongings to Muslims, etc.
The founders of Ittifaq were Äbüsoğud Äxtämev, Yusuf Akçura, Säyetgäräy Alkin, Ismail Gasprinski, R. İbrahimov, Alimardan Topchubashov, Sälimgäräy Canturin, Äxmäthadi Maqsudi, etc. Permanently worked Central Committee and Central Bureau were elected. Ittifaq played a major part within Muslim fraction of State Duma of the Russian Empire.