| Type: | Archbishop |
| Honorific-Prefix: | His Excellency |
| William Joseph Kurtz | |
| Archbishop Emeritus of Madang | |
| Term Start: | 24 July 2001 |
| Term End: | 30 November 2010 |
| Predecessor: | Benedict To Varpin |
| Successor: | Stephen Joseph Reichert |
| Previous Post: | Bishop of Kundiawa (1982–1999) Coadjutor Archbishop of Madang (1999–2001) |
| Ordination: | 28 January 1962 |
| Ordained By: | Józef Drzazga |
| Consecration: | 8 September 1982 |
| Consecrated By: | Raymond Rodly Caesar |
| Birth Date: | 1935 5, df=yes |
| Birth Place: | Kempa, Gau Silesia, Germany |
| Death Place: | Kundiawa, Papua New Guinea |
Wilhelm Józef Kurtz (anglicised to William Joseph Kurtz; 28 May 1935 – 14 February 2023) was a Polish prelate of the Roman Catholic Church.
Kurtz was born in Kempa, Gau Silesia (now Kępa, Opole Voivodeship). He was ordained to the priesthood as a member of the Society of the Divine Word in 1962. He was appointed bishop of Kundiawa, Papua New Guinea, in 1982, serving until he was named coadjutor archbishop of Madang in 1999. He succeeded Benedict To Varpin as archbishop in 2001, and retired from this position in 2010.[1]