Ada of Holland (disambiguation)
# Ada of Holland (disambiguation)

Ada of Holland may refer to:

* Ada of Holland, Margravine of Brandenburg (c. 1163 – after 1205)
* Ada, Countess of Holland (c. 1188 – 1234/37 )
* Ada of Holland (died 1258) (1208–1258), abbess of Rijnsburg Abbey from 1239
