Oshaya or Oshaia is a Hebrew-language given name and surname. Notable people with the name include:
Given name Hoshaiah II, also called Oshaya or Oshaia (died ca. 350 CE), Talmud rabbi Abba Hoshaya (also called Oshaya) of Turya (3rd century), pious Jewish wool-washer
Surname Efi Oshaya (born 1956), Israeli politician
See also Hoshaya, settlement in Northern Israel