Miyashiro (written: 都城, 宮代, 宮城) is a Japanese surname. 宮代 also be pronounced Miyadai. 宮城 also be pronounced Miyagi. In Okinawan language, 宮城 may be pronounced Naagusuku or Naagushiku. Notable people with the surname include:
, Japanese geologist
Aldo Miyashiro (born 1976), Peruvian playwright, screenwriter and actor
