İlyas Bey Mosque is a historical Islamic religious building at Milet in Didim district of Aydın Province, western Turkey.

[1] The mosque is part of a complex consisting of a madrasah, a religious educational institute, and a hammam, a bath building.

Next to the complex, ruins of a villa with a bath was discovered that dates back to Byzantine times.

[2] Ilyas Bey Mosque is known as one of the most important cultural sites in the city of Söke, Turkey.

[4] Persian culture influenced the design and building of the Ilyas Bey Mosque including its Seljuk inspired minaret.