The United Presbyterian Church (1847–1900) was a Scottish Presbyterian denomination. It was formed in 1847 by the union of the United Secession Church and the Relief Church, and in 1900 merged with the Free Church of Scotland to form the United Free Church of Scotland, which in turn united with the Church of Scotland in 1929. For most of its existence the United Presbyterian Church was the third largest Presbyterian Church in Scotland, and stood on the liberal wing of Scots Presbyterianism. The Church's name was often abbreviated to the initials U.P.