| Office: | Auditor General of Canada |
| Term Start: | May 31, 2011 |
| Term End: | November 27, 2011 |
| Predecessor: | Sheila Fraser |
| Successor: | Michael Ferguson |
| Birth Date: | 6 July 1955 |
| Birth Place: | Winnipeg, Manitoba, Canada |
| Birth Name: | John Edward Wiersema |
| Death Place: | Ottawa, Ontario, Canada |
| Alma Mater: | Carleton University |
John Edward Wiersema (July 6, 1955 – March 11, 2018) was the interim Auditor General of Canada.[1] He was appointed in May 2011 by prime minister Stephen Harper for a mandate of six months after Sheila Fraser retired from the position.
Prior to his appointment, Wiersema was Deputy Auditor General.
Wiersema was born in Winnipeg, graduated from Carleton University in Commerce and became an accountant in 1981.[2] He married to Marilyn Cassie Hut in 1979[3] and died in Ottawa on March 11, 2018, at the age of 62.[4]