Ellis Fuller Lawrence (November 13, 1879 – February 27, 1946) was an American architect who worked primarily in the U.S. state of Oregon. In 1914, he became the co-founder and first dean of the University of Oregon's School of Architecture and Allied Arts, a position he held until his death. In 1988, the private residence he designed for Thomas A. Livesley, a prominent Salem, Oregon businessman and civic leader, was purchased through private donations and donated to the state and now serves as the Governor's official residence (Mahonia Hall).