Hiberno‐English (from Latin Hibernia: "Ireland") or Irish English refers to the set of English dialects natively written and spoken in Ireland.

English was brought to Ireland as a result of the Norman invasion of Ireland of the late 12th century. Initially, it was mainly spoken in an area known as the Pale around Dublin, with mostly Irish spoken throughout the rest of the country. By the Tudor period, Irish culture and language had regained most of the territory lost to the colonists: even in the Pale, "all the common folk… for the most part are of Irish birth, Irish habit, and of Irish language". However, the English conquest and colonisation of Ireland in the 16th century marked a revival in the use of English. By the mid-19th century, English was the majority language spoken in the country. It has retained this status to the present day, with even those whose first language is Irish being fluent in English as well.