Scotland in Union

Scotland in Union (SIU)
NicknameSIU
TypePro UK campaign
Pressure group
HeadquartersGlasgow
Location
  • 272 Bath Street
Membership38,000 (reported in 2021)
Founder
Alastair Cameron
Websitewww.scotlandinunion.co.uk

Scotland in Union (SIU) is a pro-UK campaign group, based in Scotland, which launched in March 2015 to help keep Scotland within the United Kingdom. Its supporters include members of pro-UK political parties and people with no party affiliation. It is Scotland's largest and most active pro-UK campaign group, with 38,000 signed up supporters.