West (or Western) Perthshire was a county constituency of the House of Commons of the Parliament of the United Kingdom from 1885 to 1918.
[1] As defined in the 1885 Act, the constituency consisted of the "Parishes of Aberfoyle, Ardoch, Auchterarder, Blair Atholl, Balquhidder, Blackford, Crieff, Comrie, Callander, Dunkeld and Dowally (except so much as is comprised in Division No.
1 as herein described), Dunblane, Dull, Fortingall, Fowlis Wester, Glendevon, Kenmore, Killin, Kilmadock, Kincardine, Kippen (except the detached part locally situate in Stirlingshire), Kirkmichael, Little Dunkeld, Logierait, Lecropt, Moulin, Madderty, Monzie, Monzievaird and Strowan, Muthill, Port of Menteith, Trinity Gask, and Weem.
By 1918, throughout most of Scotland, county boundaries had been altered, and detached parishes were generally historic.
The political parties had been making preparations for an election to take place and by July 1914, the following candidates had been selected;