Bandar Deylam (Persian: بندرديلم; also Romanized as Bandar-e Deylam, Bandar Dīlam, and Bandar-e Delam; also known simply as Deylam or Dīlam) is a port city in and capital of Deylam County, Bushehr Province, Iran. At the 2006 census, its population was 19,829, in 4,426 families.