The Second Menzies ministry (United Australia–Country Coalition) was the 26th ministry of the Government of Australia. It was led by the country's 12th Prime Minister, Robert Menzies. The Second Menzies ministry succeeded the First Menzies ministry, which dissolved on 14 March 1940 after Menzies entered into a formal Coalition with Archie Cameron and his Country Party. The ministry was replaced by the Third Menzies ministry on 28 October 1940 following the 1940 federal election.
Percy Spender, who died in 1985, was the last surviving member of the Second Menzies ministry; Spender was also the last surviving minister of the First Menzies ministry, Third Menzies ministry, Fadden ministry, and the Fourth Menzies ministry. John McEwen was the last surviving Country minister.
Ministry
{| class="wikitable sortable"
!colspan="2"|Party
! Minister
! Portrait
! Portfolio
|-
| | ||United Australia
| Robert Menzies <br>
for Kooyong <br>
| 100px
|
- Prime Minister
- Leader of the United Australia Party
- Minister for Defence Co-ordination
- Minister for Information
- Minister for Munitions <small>(from 11 June 1940)</small>
|-
| | ||Country
| Archie Cameron <br>
for Barker <br>
| 100px
|
- Leader of the Country Party <small>(to 16 October 1940)</small>
- Minister for Commerce
- Minister for the Navy
|-
| | ||United Australia
| Billy Hughes <br>
for North Sydney <br>
| 100px
|
- Attorney-General
- Minister for Industry
|-
| | ||United Australia
| Percy Spender <br>
for Warringah <br>
| 100px
|
- Treasurer
|-
| | ||Country
| John McEwen <br>
for Indi <br>
| 100px
|
- Minister for External Affairs
|-
| | ||Country
| Harold Thorby <br>
for Calare <br>
| 100px
|
- Deputy Leader of the Country Party <small>(to 15 October 1940)</small>
- Minister for Health
- Postmaster-General
|-
| | ||United Australia
| Geoffrey Street <br>
for Corangamite <br>
| 100px
|
- Minister for the Army <small>(to 13 August 1940)</small>
- Minister for Repatriation <small>(to 13 August 1940)</small>
|-
| | ||United Australia
| Sir Henry Gullett <br>
for Henty <br>
| 100px
|
- Vice-President of the Executive Council <small>(to 13 August 1940)</small>
- Minister in charge of Scientific and Industrial Research <small>(to 13 August 1940)</small>
- Minister assisting the Minister for Information <small>(to 13 August 1940)</small>
|-
| | ||United Australia
| George McLeay <br>
Senator for South Australia <br>
| 100px
|
- Minister for Trade and Customs
- Leader of the Government in the Senate
|-
| | ||United Australia
| James Fairbairn <br>
for Flinders <br>
| 100px
|
- Minister for Civil Aviation <small>(to 13 August 1940)</small>
- Minister for Air <small>(to 13 August 1940)</small>
|-
| | ||United Australia
| Sir Frederick Stewart <br>
for Parramatta <br>
| 100px
|
- Minister for Social Services
- Minister for Supply and Development
|-
| | ||United Australia
| Harry Foll <br>
Senator for Queensland <br>
| 100px
|
- Minister for the Interior
|-
| | ||United Australia
| Herbert Collett <br>
Senator for Western Australia <br>
| 100px
|
- Minister without portfolio administering War Service Homes <small>(to 14 August 1940)</small>
- Minister without portfolio assisting the Minister for Repatriation <small>(to 14 August 1940)</small>
- Minister in charge of War Service Homes <small>(from 14 August 1940)</small>
- Vice-President of the Executive Council <small>(from 14 August 1940)</small>
- Minister in charge of Scientific and Industrial Research <small>(from 14 August 1940)</small>
- Minister assisting the Minister for Repatriation <small>(from 14 August 1940)</small>
|-
| | ||United Australia
| Philip McBride <br>
Senator for South Australia <br>
| 100px
|
- Minister without portfolio assisting the Minister for Commerce <small>(to 14 August 1940)</small>
- Minister for the Army <small>(from 14 August 1940)</small>
- Minister for Repatriation <small>(from 14 August 1940)</small>
- Minister assisting the Minister for Commerce <small>(from 14 August 1940)</small>
|-
| | ||Country
| Arthur Fadden <br>
for Darling Downs <br>
| 100px
|
- Deputy Leader of the Country Party <small>(from 16 October 1940)</small>
- Minister without portfolio assisting the Minister for Supply and Development <small>(to 14 August 1940)</small>
- Minister without portfolio assisting the Treasurer <small>(to 14 August 1940)</small>
- Minister for Air <small>(from 14 August 1940)</small>
- Minister for Civil Aviation <small>(from 14 August 1940)</small>
- Minister assisting the Treasurer <small>(from 14 August 1940)</small>
- Minister assisting the Minister for Supply and Development <small>(from 14 August 1940)</small>
|-
| | ||Country
| Horace Nock <br>
for Riverina <br>
| 100px
|
- Minister without portfolio assisting the Prime Minister
- Minister without portfolio in charge of External Territories
- Minister without portfolio assisting the Minister for the Interior
|}