Yahya ibn Asad (died 855) was a Samanid ruler of Shash (819–855) and Samarkand (851/852–855).
In 819, Yahya was granted authority over the city of Shash by Caliph Al-Ma'mun's governor of Khurasan, Ghassan ibn 'Abbad, as reward for his support against the rebel Rafi' ibn Laith.
Yahya's power was subsequently significantly curtailed by Ahmad, and he may have ruled as simply a figurehead until his death in 855.
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