Esfandiyār is a legendary Iranian hero and one of the characters of Ferdowsi's Shahnameh.
Esfandiyār, Esfaniyar or Esfandiar (Persian: اسفنديار) and similar transliterations may also refer to:
- Esfandiar (name)
- Esfandiar, Bushehr, a village in Bushehr Province, Iran
- Esfandiar, Khuzestan, a village in Khuzestan Province, Iran
- Esfandiar, South Khorasan, a village in South Khorasan Province, Iran