Lisan-ud-Dawat (Arabic: لسان الدعوة, Lisan ud-Dawat, "language of the Dawat") is the language of the Taiyebi Bohras of Gujarat (India), an Ismaili Shia Muslim community. It is a Gujarati dialect, but incorporates a heavy amount of Arabic, Urdu, and Persian vocabulary and is written in the Arabic script. Originally a ritual language, since the period of 41st Da'i e Mutlaq Saiyedna Jivabhai Fakhruddin from 1330 AH in Vadodara it has also been propagated as the vernacular language for members of the Alavi Bohras, but the version used by the Saiyedna and his assembly members or clergy still little bit differs from the Gujarati spoken by other community members. Unlike Gujarati, Lisan ud-Dawat is written with the Urdu alphabet but in Arabic style of writing.
Some key works in Lisan al-Dawat are the translations of the Literary Master-pieces of Isma'ili Literature written during the reign of Fatimids in Egypt, its summaries and admonitions in poetic forms written by 41st Da'i e Mutlaq Saiyedna Jivabhai Fakhruddin. Some of the nasihats recited regularly by Alavi Bohras are "Aye Mumino socho zara, duniyaa che aa daar e fanaa" (O faithful, you think that this world is going to end) and "Khazaano ilm no mushkil-kushaa ni itrat che" (The treasure of knowledge is the progeny of Ali, the legatee of Mohammad Rasoolullaah).
Many in the community look upon Lisan al-Dawat as a bridge for their Gujarati community to Arabic.