The Church of Scotland (CoS; Scots: The Kirk o Scotland; Scottish Gaelic: Eaglais na h-Alba) is a Presbyterian denomination of Christianity that holds the status of the national church in Scotland. It is one of the country's largest, having 245,000 members in 2024 and 259,200 members in 2023. While membership in the church has declined significantly in recent decades (in 1982 it had nearly 920,000 members), the government Scottish Household Survey concluded that 20% of the Scottish population, or over one million people, identified the Church of Scotland as their religious identity in 2019.
In the 2022 census, 20.4% of the Scottish population, or 1,108,796 adherents, identified the Church of Scotland as their religious identity. The Church of Scotland's governing system is presbyterian in its approach; therefore, no one individual or group within the church has more or less influence over church matters. There is no one person who acts as the head of faith, as the church believes that role is the "Lord God's". As a proper noun, the Kirk is an informal name for the Church of Scotland used in the media and by the church itself.