| Montague Massy-Westropp | |
| Birth Name: | Montague Massy-Westropp[1] |
| Birth Date: | 7 August 1891 |
| Birth Place: | Temora, New South Wales |
| Death Date: | 2 July 1974 |
| Death Place: | New South Wales |
| Occupation: | stock and station agent, farmer |
| School: | Kings school |
| Spouse: | Ida Brown |
| Ru Position: | wing |
| Repyears1: | 1914 |
| Repteam1: | Wallabies |
| Repcaps1: | 1 |
| Reppoints1: | 0 |
Montague Massy-Westropp (c. 1891 – c. 1974) was a rugby union player who represented Australia.
Massy-Westropp, a wing, was born in Temora, New South Wales and claimed 1 international rugby cap for Australia.