St Pancras West (UK Parliament constituency)

St Pancras West was a parliamentary constituency in the Metropolitan Borough of St Pancras, London. It returned one Member of Parliament (MP) to the House of Commons of the Parliament of the United Kingdom.

It was created for the 1885 general election from the larger two-member constituency of St Pancras and abolished for the 1918 general election. It was one of four single-member divisions of the borough, the others being St Pancras East, St Pancras North, and St Pancras South.

The constituency's boundaries primarily covered the western portions of the St Pancras area, including areas now considered part of Camden Town and Somers Town. Electoral performance generally favored Liberal or Labour candidates towards the end of its existence.