Mlaḥsô or Mlahso (Classical Syriac: ܡܠܰܚܣܳܐ), sometimes referred to as Suryoyo or Surayt, is an extinct or dormant Central Neo-Aramaic language. It was traditionally spoken in eastern Turkey and later also in northeastern Syria by ethnically Assyrian Syriac Orthodox Christians.
The Mlaḥsô language (Surayt of Mlaḥsô) is closely related to the Surayt of Turabdin but sufficiently different to be considered a separate language, with the syntax of the language having retained more features of Classical Syriac than Turoyo. It was spoken in the villages of Mlaḥsô (Turkish: Yünlüce, Kurdish: Mela), a village established by two monks from the Tur Abdin mountain range, and in the village of ˁAnşa near Lice, Diyarbakır, Turkey.