Editing Jack Masters (section)

{{Short description|Canadian politician (1931–2024)}}
{{Use Canadian English|date=September 2021}}
{{Use dmy dates|date=January 2024}}
{{Infobox officeholder
| name            = Jack Masters
| image           =
| caption         =
| order           = 4th [[List of mayors of Thunder Bay, Ontario|Mayor of Thunder Bay]]
| term_start      = 1986
| term_end        = 1991
| predecessor     = [[Walter Assef]]
| successor       = [[David Hamilton (county administrator)|David Hamilton]]
| order2          = [[Member of Parliament (Canada)|MP]] for [[Thunder Bay—Nipigon]]
| term_start2     = 1980
| term_end2       = 1984
| predecessor2    = [[Bob Andras]]
| successor2      = [[Ernie Epp]]
| birth_name=John Gerald Mastrangelo
| birth_date      = {{birth date|df=y|1931|9|27}}
| birth_place     = [[Fort William, Ontario]], Canada
| death_date      = {{death date and age|2024|1|5|1931|9|27|df=y}}
| death_place     = [[Thunder Bay, Ontario]], Canada
| constituency    =
| party           = [[Liberal Party of Canada|Liberal]]
| spouse          =
| profession      =
| religion        = 
| signature       =
| footnotes       =
}}

'''John Gerald Masters''' (born '''John Gerald Mastrangelo''', 27 September 1931 – 5 January 2024) was a Canadian politician. He served as [[mayor]] of the city of [[Thunder Bay]], [[Ontario]], and as a federal [[Member of Parliament (Canada)|Member of Parliament]].