西洛锡安问题（英语：West Lothian question）是英国当前在全英国会管辖范围的一大吊诡困局。这个问题是由时任苏格兰西洛锡安选区的工党议员谭姆·戴利埃尔（Tam Dalyell）于1977年11月4日在全英国会下议院辩论《1978年苏格兰法案》和《1978年威尔士法案》两个权利下放的议案时首次提出：

戴利埃尔议员在此次发言中进一步指出，这两个议案通过后的极端情况可以是，以后来自西洛锡安（West Lothian）的议员可以就英格兰中部西布罗米奇选区（West Bromwich）的议题投票，却不能就自己选区的问题在全英国会中表决。

The West Lothian question, also known as the English question, refers to whether MPs from Northern Ireland, Scotland and Wales, sitting in the House of Commons of the United Kingdom, should be able to vote on matters that affect only England, while MPs from England are unable to vote on matters that have been devolved to the Northern Ireland Assembly, the Scottish Parliament and the Welsh Assembly. The term "West Lothian question" was coined by Enoch Powell MP in 1977 after Tam Dalyell, the Labour MP for the Scottish constituency of West Lothian, raised the matter repeatedly in House of Commons debates on devolution.