George Müller was a Christian evangelist and the director of the Ashley Down orphanage in Bristol, England. He was one of the founders of the Plymouth Brethren movement. Later during the split, his group was called the Open Brethren.

The New Orphan Houses, Ashley Down, commonly known as the Muller Homes, were an orphanage in the district of Ashley Down, in the north of Bristol. They were built between 1849 and 1870 by the Prussian evangelist George Müller to show the world that God not only heard, but answered, prayer. The five Houses held 2,050 children at any one time and some 17,000 passed through their doors before the buildings were sold to Bristol City Council in 1958.