Ivan Frederick II (born 1966/67), called Chip Frederick, of Buckingham County, Virginia, is a former Staff Sergeant in the United States Army.

In this environment, Ms. Stevens and her son said, Chip Frederick, as he is known, was a model officer.

The abuses became public because of the outrage of Specialist Joseph M. Darby, an M.P. whose role emerged during the Article 32 hearing against Chip Frederick.