|Alma mater||University of New South Wales|
|Institutions||University of Queensland|
As Vice Chancellor, he was the university's chief executive officer and responsible to the University Senate for the overall direction of strategic planning, finance and external affairs. As a chemical engineer, he was made an Officer in the General Division of the Order of Australia in 2006 for service to science and engineering, thereby providing recognition of his "distinguished service of a high degree to Australia". His annual salary in 2010 was reported to be A$1,069,999.
Greenfield resigned from his position as President and Vice-Chancellor of the University on 13 January 2012 in the aftermath of what was known as the UQ admissions scandal. The scandal related to an "irregularity" in the enrolment of a student in the medicine course who was a "close relative" of his. He had planned to step down in mid-2012 but changed his mind on 9 December 2011 and said he would leave the university on 13 January 2012. It was subsequently revealed that the "close relative" was in fact his daughter, Charlotte Greenfield, who was offered a place in the medicine course despite not having met the entry requirements and being ranked below 343 other applicants who were not admitted. The Queensland Crime and Misconduct Commission (CMC) investigated the matter and issued an investigative report in September, 2013. As Charlotte was unaware of the actions on her behalf, she remained in the University of Queensland's medical school and has since graduated as a registered medical practitioner.
Greenfield was the Chair of the Australian Nuclear Science and Technology Organisation from February 2011 to August 2014.
- "Governance - About UQ - The University of Queensland, Australia". Uq.edu.au. 2012-10-10. Retrieved 2012-10-23.
- "It's an Honour - Honours - Search Australian Honours". Itsanhonour.gov.au. 2006-01-26. Retrieved 2012-10-23.
- "University of Queensland chiefs stand down after investigation exposes enrolment problems". Courier Mail. 2011-11-05. Retrieved 2012-10-23.
- Walker, Jamie (9 December 2011). "UQ vice-chancellor Paul Greenfield hastens his exit". The Australian. Retrieved 9 December 2011.
- Matt Wordsworth (2011-11-10). "UQ vice-chancellor enrolled underqualified relative | ABC News". Abc.net.au. Retrieved 2012-10-23.
- Bracey, Andrew (13 September 2013). "UQ vice-chancellor's daughter given med school place ahead of 343 others". Medical Observer. Retrieved 13 September 2013.
- "An examination of suspected official misconduct at the University of Queensland — Crime and Corruption Commission Queensland". Cmc.qld.gov.au. 2013-09-13. Retrieved 2016-11-03.
- "Uni Boss Daughter Given Leg Up". The Australian. Retrieved 2016-11-03.
- "Australian Health Practitioner Regulation Agency - Register of practitioners". Retrieved 2017-10-29.
- "New Chair and Deputy Chair to lead ANSTO Board". ANSTO.gov.au. Retrieved 2016-11-03.