The Church of St. Nicholas was a Gothic Revival cathedral that was formerly one of the five Lutheran Hauptkirchen in the city of Hamburg, Germany. The original chapel, a wooden building, was completed in 1195. It was replaced by a brick church in the 14th century, which was eventually destroyed by fire in 1842. The church was completely rebuilt by 1874, and was the tallest building in the world from 1874 to 1876. It was designed by the English architect George Gilbert Scott.

Sir George Gilbert Scott, largely known as Sir Gilbert Scott, was a prolific English Gothic Revival architect, chiefly associated with the design, building and renovation of churches and cathedrals, although he started his career as a leading designer of workhouses. Over 800 buildings were designed or altered by him.