A $3.4 million donation to the Massey University Foundation is believed to be the largest in Massey's 90 year history.
Yet the donor has insisted on complete anonymity for their generous actions.
The foundation is the university's registered charity, set up to support students, staff, and university facilities.
Massey Vice-Chancellor Jan Thomas said she was in equal parts amazed at the size of the gift, and humbled by the donor's wish to stay anonymous.
"All I can say is thank you so much and please accept my assurance every cent will always be used for the benefit of the students. "