The Ilchi Mosque is a Shi'ite mosque in Esfahan, in the province of Isfahan, Iran. The founder of this small and simple mosque was Saheb Soltan Beigom, the daughter of a courtier in the Shah Suleiman's court. In Azeri, the word Ilchi (elçi) means messenger. The mosque was built in 1686 CE under the supervision of Mohammad Ali ben Ostad ALibeyk.