Pro Per in United States

Plain-English Law

Pro Per as defined by Nolo’s Encyclopedia of Everyday Law (p. 437-455):

A term derived from the Latin in propria persona, meaning for one’s self, used in some states to describe a person who handles his or her own case without a lawyer. In other states, the term pro se is used.

Pro Per Definition in the context of the Federal Court System

A slang expression sometimes used to refer to a pro se litigant. It is a corruption of the Latin phrase “in propria persona.”