The Aslan Pasha Mosque () is a former mosque in the city of Ioannina, in the Epirus region of Greece.
The mosque was built in 1618, during the Ottoman-era, in the city's castle, that replaced the former Church of Saint John, torn down after the failed anti-Ottoman revolt of 1611 led by Dionysius the Philosopher.
Since 1933, the building houses the Municipal Ethnographic Museum of Ioannina.
In September 2018, a Mediterranean Sea tropical-like cyclone damaged the minaret on the top of the mosque, and restoration commenced in August 2019.