Jock Blackwood

{{Use dmy dates|date=July 2021}}

{{Use Australian English|date=September 2011}}

{{Infobox rugby biography

| name = Jock Blackwood

| image =

| birth_name = John Garven Blackwood{{cite web|url=http://www.espnscrum.com/australia/rugby/player/2900.html|title=Scrum.com player profile of Jock Blackwood|publisher=Scrum.com|accessdate=12 July 2010}}

| birth_date = {{birth date|1899|8|26|df=y}}

| birth_place = Mona Vale, New South Wales

| death_date= c. 1979

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| ru_currentposition =

| ru_currentteam =

| ru_position = hooker

| amatyears1 =

| amatteam1 = Eastern Suburbs RUFC

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| repyears1 = 1922–28

| repteam1 = Wallabies

| repcaps1 = 21

| reppoints1 = 0

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}}

John Garven Blackwood (26 August 1899 – c. 1979) was a rugby union player who represented Australia.

Blackwood, a hooker, was born in Mona Vale, New South Wales and claimed a total of 21 international rugby caps for Australia. He was inducted into the Australian Rugby Union's Hall of Fame in 2015.