Iza is a town located in the province and autonomous community of Navarre, northern Spain.
- For the village in Slovakia see Iža
- For the river in Romania, see Iza River
- For the character in the video game The Legend of Zelda: Twilight Princess, see Characters in The Legend of Zelda: Twilight Princess
- IZA is also the German abbreviation for the Institute for the Study of Labor, which awards the IZA Prize in Labor Economics