| St Pancras West | |
|---|---|
| Former borough constituencyfor the House of Commons | |
| 1885–1918 | |
| Seats | One |
| Created from | Marylebone |
| Replaced by | St Pancras South West |
St Pancras West was a borough constituency represented in the House of Commons of the Parliament of the United Kingdom. It elected one Member of Parliament (MP) by the first past the post system of election. It was created by the Redistribution of Seats Act 1885 for the 1885 general election and abolished for the 1918 general election.

| Year | Member | Party | |
|---|---|---|---|
| 1885 | Harry Levy-Lawson | Liberal | |
| 1892 | Harry Graham | Conservative | |
| 1906 | Sir William Collins | Liberal | |
| 1910 | Felix Cassel | Conservative | |
| 1916 | Richard Barnett | Unionist | |
| 1918 | constituency abolished | ||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Liberal | Harry Levy-Lawson | 2,954 | 54.3 | ||
| Conservative | Walter Haweis James | 2,485 | 45.7 | ||
| Majority | 469 | 8.6 | |||
| Turnout | 5,439 | 76.6 | |||
| Registered electors | 7,103 | ||||
| Liberalwin (new seat) | |||||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Liberal | Harry Levy-Lawson | 2,567 | 50.6 | −3.7 | |
| Conservative | Harry Graham | 2,503 | 49.4 | +3.7 | |
| Majority | 64 | 1.2 | −7.4 | ||
| Turnout | 5,070 | 71.4 | −5.2 | ||
| Registered electors | 7,103 | ||||
| Liberalhold | Swing | −3.7 | |||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Conservative | Harry Graham | 2,984 | 50.4 | +1.0 | |
| Liberal | Harry Levy-Lawson | 2,942 | 49.6 | −1.0 | |
| Majority | 42 | 0.8 | N/A | ||
| Turnout | 5,926 | 76.4 | +5.0 | ||
| Registered electors | 7,754 | ||||
| Conservativegain from Liberal | Swing | +1.0 | |||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Conservative | Harry Graham | 3,104 | 57.7 | +7.3 | |
| Liberal | William Collins | 2,273 | 42.3 | −7.3 | |
| Majority | 831 | 15.4 | +14.6 | ||
| Turnout | 5,377 | 74.6 | −1.8 | ||
| Registered electors | 7,208 | ||||
| Conservativehold | Swing | +7.3 | |||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Conservative | Harry Graham | 3,220 | 67.5 | +9.8 | |
| Liberal | Godfrey Benson | 1,553 | 32.5 | −9.8 | |
| Majority | 1,667 | 35.0 | +19.6 | ||
| Turnout | 4,773 | 64.2 | −10.4 | ||
| Registered electors | 7,431 | ||||
| Conservativehold | Swing | +9.8 | |||

| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Liberal | William Collins | 3,230 | 55.9 | +23.4 | |
| Conservative | Harry Graham | 2,545 | 44.1 | −23.4 | |
| Majority | 685 | 11.8 | N/A | ||
| Turnout | 5,775 | 79.3 | +15.1 | ||
| Registered electors | 7,282 | ||||
| Liberalgain from Conservative | Swing | +23.4 | |||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Liberal | William Collins | 3,553 | 50.1 | −5.8 | |
| Conservative | Robert Edmund Dickinson | 3,543 | 49.9 | +5.8 | |
| Majority | 10 | 0.2 | −11.6 | ||
| Turnout | 7,096 | 82.6 | +3.3 | ||
| Registered electors | 8,589 | ||||
| Liberalhold | Swing | −5.8 | |||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Conservative | Felix Cassel | 3,385 | 50.1 | +0.2 | |
| Liberal | William Collins | 3,376 | 49.9 | −0.2 | |
| Majority | 9 | 0.2 | N/A | ||
| Turnout | 6,761 | 78.7 | −3.9 | ||
| Registered electors | 8,589 | ||||
| Conservativegain from Liberal | Swing | +0.2 | |||
General election 1914–15:
Another general election was required to take place before the end of 1915. The political parties had been making preparations for an election to take place and by July 1914, the following candidates had been selected:
Felix Cassel's resignation on becoming a Judge Advocate General of the Armed Forces required a by-election.
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Unionist | Richard Barnett | Unopposed | |||
| Unionisthold | |||||