The Scottish Government is the devolved government for Scotland and runs the country in relation to matters that are devolved from Westminster. At present it is run by an SNP minority administration.
The Scottish Parliament is the devolved Parliament of Scotland responsible for implementing laws and policy on devolved matters. It uses a 2-vote system combining additional member and first past the post.
The UK Government is the Government for the United Kingdom of Great Britain and Northern Ireland. At present it is run by a Conservative & Unionist led administration with the support of Northern Ireland’s DUP.
The UK or British Parliament, commonly known as Westminster, is the legislative body of the UK. It is made up of two chambers, the elected House of Commons and appointed House of Lords.