George Duffield (July 4, 1794 - June 26, 1868) was a leading nineteenth-century New School Presbyterian minister who bore the same name as his father and grandfather.

His evolution from unconventional doctrinal leanings to more orthodox and standard ones typified the moderation on both sides which led to reunion with the Old School Presbyterians in 1870.

He studied theology in New York City under the preceptorship of John M. Mason and was licensed to preach by the Presbytery of Philadelphia in 1815.

In 1847 he led the Detroit Presbytery to adopt a statement which censured Finney, entitled "A Warning Against Error."

"[2] Duffield also was a leading Presbyterian premillennialist, and in 1842 authored, Dissertations on the prophecies relative to the second coming of Jesus Christ.