Greenock was a burgh constituency represented in the House of Commons of the Parliament of the United Kingdom from 1832 until 1974, when it was abolished and its area was merged into the new Greenock and Port Glasgow constituency.
Boundaries
The boundaries of the constituency, as set out in the Representation of the People (Scotland) Act 1832, were-
:"From the Point, on the West of the Town, at which the Shore of the Firth of Clyde is met by the March between the Parishes of Greenock and Innerkip, up the said March to that Point thereof which is nearest to the Southern Point of the Ridge of Bow Hill; thence in a straight Line to the said Point on Bow Hill; thence in a straight Line to the Southern End of the Upper East Reservoir for supplying Greenock with Water; thence in a straight Line, in the Direction of the highest projecting Point of Knocknair Hill, to the Point near Woodhead Quarry, at which such straight Line cuts the Easternmost of the Two Rivulets which form the Lady Burn; thence down such Rivulet and the Lady Burn to the Point at which the same joins the Firth of Clyde; thence along the Shore of the Firth of Clyde to the Point first described."
1885–1918: The existing parliamentary borough, and so much of the municipal borough of Greenock as was not already included in the parliamentary borough.
Members of Parliament
{| class="wikitable"
|-
!colspan="2"|Election!!Member!!Party
|-
|style="color:inherit;background-color: " |
| 1832 || Robert Wallace || Whig
|-
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| 1845 by-election || Walter Baine || Whig
|-
|style="color:inherit;background-color: " |
| 1847 || William Elliot-Murray-Kynynmound || Whig
|-
|style="color:inherit;background-color: " |
| 1852 || rowspan="2" | Alexander Murray Dunlop || Whig
|-
|style="color:inherit;background-color: " |
| 1859 || Liberal
|-
|style="color:inherit;background-color: " |
| 1868 || James Grieve || Liberal
|-
|style="color:inherit;background-color: " |
| 1878 by-election || James Stewart || Liberal
|-
|style="color:inherit;background-color: " |
| 1884 by-election || rowspan="2" | Thomas Sutherland || Liberal
|-
|style="color:inherit;background-color: " |
| 1886 || Liberal Unionist
|-
|style="color:inherit;background-color: " |
| 1892 || John Bruce || Liberal
|-
|style="color:inherit;background-color: " |
| 1892 || Sir Thomas Sutherland || Liberal Unionist
|-
|style="color:inherit;background-color: " |
| 1900 || James Reid || Unionist
|-
|style="color:inherit;background-color: " |
| 1906 || Halley Stewart || Liberal
|-
|style="color:inherit;background-color: " |
| Jan 1910 ||rowspan="4" | Sir Godfrey Collins || Liberal
|-
|style="color:inherit;background-color: " |
| 1916 || Coalition Liberal
|-
|style="color:inherit;background-color: " |
| 1921 || Liberal
|-
|style="color:inherit;background-color: " |
| 1931 || National Liberal
|-
|style="color:inherit;background-color: " |
| 1936 by-election || Robert Gibson || Labour
|-
|style="color:inherit;background-color: " |
| 1941 by-election || Hector McNeil || Labour
|-
|style="color:inherit;background-color: " |
| 1955 by-election || Dickson Mabon || Labour Co-operative
|-
|colspan="2" align="center"| Feb 1974
|colspan="2"| constituency abolished: see Greenock & Port Glasgow
|}
Election results
Elections in the 1830s
Elections in the 1870s
Elections in the 1880s
Stewart's resignation caused a by-election.