Scottish republicanism (Scottish Gaelic: Poblachdas na h-Alba) is an ideology based on the belief that Scotland should be a republic; the nation is currently a monarchy as part of the United Kingdom. Republicanism is associated with Scottish nationalism and the Scottish independence movement, but also with British republicanism and the movement for federalism in the United Kingdom.

Andrew Fletcher of Saltoun is one of the most prominent pre-Union advocates of a Scottish republic, based on agrarian and patriarchal principles.^[1] He was a major inspiration to Scottish Enlightenment philosopher Adam Ferguson, whose republican ideals were penned down in An Essay on the History of Civil Society (1767).^[1]

One of the foremost documentations of modern Scottish republicanism is the Declaration of Calton Hill, proclaimed on 9 October 2004, the same day that Queen Elizabeth II opened the new Scottish Parliament Building at Holyrood.^[2]

In the run-up to the 2014 independence referendum, the Radical Independence Campaign advocated an independent Scottish republic with an elected head of state,^[3] instead of the continued union of crowns established with the English monarchy, predating the Acts of Union.

Ahead of the Accession declaration of Charles III at Mercat Cross in Edinburgh on 11 September 2022, the campaign group Our Republic stated: "We encourage those with objections to these proclamations to make those clear".^[4] The members voiced their opposition to the new King through booing, turning their backs and shouting "no consent", and holding up anti-Monarchy slogans during the Lord Lyon King of Arms's declaration. They were briefly detained by Police Scotland before being released. One protester was later again arrested and charged under "Breach of the Peace".^[5]

Many people who advocate Scotland becoming a republic do so through their support for Scottish independence. This would entail Scotland becoming independent from the United Kingdom and instead of continuing the Union of the Crowns that predate the political union, a republic would be formed, with an elected Head of State assuming the role of the deposed monarch.

Scotland's largest pro-independence party, the Scottish National Party (SNP), favours retaining the monarchy as a Commonwealth realm similar to the situation in other crown countries like Canada, Australia and New Zealand.^[6] However, the party has a number of prominent republican members, including Roseanna Cunningham, Tommy Sheppard^[7][8] Kate Forbes and Humza Yousaf,^[9] who became First Minister in 2023.^[10]

The republican Scottish Green Party have held two ministerial positions in the Scottish Government since 2021, under the Bute House Agreement. Green co-leader and Minister for Zero Carbon Buildings, Active Travel and Tenants' Rights Patrick Harvie has been highly critical of the British monarchy, calling for the monarch to be replaced with a "democratically accountable head of state", as well as describing the Royal Family an "outdated, discredited and totally undemocratic institution".^[11] Harvie boycotted a service of thanksgiving for the Coronation of Charles III and Camilla in St Giles' Cathedral along with fellow Green co-leader and Minister for Green Skills, Circular Economy and Biodiversity Lorna Slater. Slater had previously spoken at a republican rally in May 2023 on Calton Hill with Maggie Chapman.

The SNP proposes that in the event of independence, the presiding officer's post be replaced with that of chancellor of Scotland. In addition to presiding over the Scottish Parliament, the chancellor would possess additional constitutional powers during the absence of the monarch from Scotland; chiefly, the chancellor should act in a role similar to a governor-general in the other Commonwealth realms.^[12]

Most of the other political parties and organisations which advocate Scottish independence also advocate Scotland becoming an independent republic. These include:

• Scottish Greens^[13]
• Scottish Socialist Party^[14]
• Alba Party^[15]
• Scottish Republican Socialist Movement
• Radical Independence Campaign^[16]
• Our Republic (cross-constitutional campaign group)^[17]

Another concept for Scotland becoming a republic is through reform of the United Kingdom's constitutional status from a constitutional monarchy to a republican constitution. There is not an explicit link with British unionism, as this tends to advocate the Union of Crowns. This is a form of British republicanism which is supported by English politicians such as Dennis Skinner and Jeremy Corbyn, and advocacy groups such as Republic. There is no mainstream support for this concept in any Scottish political parties, and it remains a personal position, unlike support for an independent Scottish republic which does have party support.

Adam Tomkins is an example of a republican who supports a reformed Britain without monarchy,^[18] however his opinion shifted after being elected for the Scottish Conservative & Unionist Party who are ardent supporters of the monarchy.^[19] Another example is Scottish Labour MSPs Katy Clark and Mercedes Villalba who advocate for abolishing the Monarchy across the UK as well as radical constitutional reform.^[20][21] The Scottish campaign group Our Republic also contains several members who support Scotland remaining in a reformed Union.