Codex Regius, designated by siglum Le or 019, ε56, is a Greek uncial manuscript of the New Testament written on parchment. Using the study of comparative writing styles (palaeography), it has been assigned to the 8th century. The manuscript has several gaps. Textual critic Frederick H. A. Scrivener described it as "by far the most remarkable document of its age and class."

Jesus and the woman taken in adultery is a most likely pseudepigraphical passage (pericope) found in John 7:53–8:11 of the New Testament.