POYNING'S LAW, Engl. law. The name usually given to an act which was passed by a parliament holden in Ireland in the tenth of Henry the Seventh; it enacts that all statutes made in the realm of England before that time should be in force and put in use in the realm of Ireland. Irish Stat. 10 H. VII. c. 22; Co. Litt. 141 b; Harg. n. 3.