Robertson ministry (1875–1877)

Third Robertson ministry
15th cabinet of the Colony of New South Wales
Premier John Robertson and the Colony of New South Wales (1863–1900)
Date formed	9 February 1875 (1875-02-09)
Date dissolved	21 March 1877 (1877-03-21)
People and organisations
Head of government	John Robertson
Head of state	Queen Victoria (represented by Sir Hercules Robinson)
No. of ministers	8
Member party	unaligned
Status in legislature	Minority government
Opposition party	unaligned
Opposition leader	Henry Parkes
History
Outgoing election	1877
Predecessor	First Parkes ministry
Successor	Second Parkes ministry

The third Robertson ministry was the fifteenth ministry of the Colony of New South Wales, and was led by the Honourable John Robertson. It was the third of five occasions that Robertson was Premier. Robertson was elected in the first free elections for the New South Wales Legislative Assembly held in March 1856.

The title of Premier was widely used to refer to the Leader of Government, but not enshrined in formal use until 1920.

There was no party system in New South Wales politics until 1887. Under the constitution, ministers were required to resign to recontest their seats in a by-election when appointed. These by-elections are only noted when the minister was defeated; in general, he was elected unopposed.

This ministry covers the period from 9 February 1875 until 21 March 1877, when Robertson was defeated by Henry Parkes at the 1877 election.

: A Member of the Government without a seat in the Executive Council.