St. Peter's Cemetery is in Washington Missouri and is operated and managed by St. Peter's United Church of Christ at 20 East Fifth Street in Washington.

The St. Peter's Cemetery contains two main areas: the old original cemetery founded in 1875, and a newer cemetery area that began in 1936 and consists of 7 sections labeled A through G. These two major areas are referred to as OLD and NEW. The OLD cemetery is in the back and to the west of the buildings. The NEW cemetery is in the front nearest Fifth Street.

Management is by the Cemetery Board consisting of 6 church members, the cemetery sexton, and a representative from the Church Council. Operation is handled by the Sexton along with volunteers.

Information about burial plots are available through the church office at 636-239-6176.