The Irish Terrier carries several names reflecting its heritage and characteristics, with the registered breed name recognized universally by kennel organizations worldwide. The designation "Irish Terrier" directly acknowledges the breed's origin in Ireland, where it developed as one of four native terrier breeds, distinguishing it from the countless terrier varieties developed in England and Scotland. The specificity of "Irish" in the name celebrates the breed's unique development within Irish culture and landscape.
In Irish Gaelic, the breed is known as "Brocaire Rua," which translates approximately to "red badger dog" or "red terrier," reflecting both the breed's distinctive coloring and its historical function hunting badgers and vermin. The Gaelic name connects the breed to Ireland's linguistic heritage, though international kennel clubs and breed enthusiasts typically use the English designation. The preservation of the Gaelic name maintains cultural connection to the breed's origins among Irish farmers and working people who developed these versatile farm dogs.
Within terrier fancy, enthusiasts sometimes refer to the breed simply as "IT" using the acronym particularly in written communication among breeders and exhibitors. This shortened form appears frequently in show catalogs, breeding records, and informal communications where context makes the reference clear. The abbreviation reflects the casual communication style common among those deeply familiar with the breed.
The nickname "Daredevil" appears so frequently in breed descriptions that it functions almost as an alternate name, capturing the breed's characteristic fearlessness and headlong courage. This moniker originated from the breed's reputation for rushing at adversaries with complete disregard for danger or personal safety, coupled with their success as messenger dogs during World War I when they carried communications through terrifying trench warfare conditions. The "Daredevil" designation encapsulates both temperament and historical service in a single evocative word.
Some historical references identify the breed as "Red Terrier" or "Irish Red Terrier," emphasizing the distinctive coat color that became standardized by the early 20th century. These color-based names distinguish Irish Terriers from other Irish breeds and highlight the breed's evolution toward uniform red coloring after earlier generations included black and tan and brindle variations. While less commonly used today than "Irish Terrier," these color references appear in historical texts and occasionally in casual conversation.
Occasionally, the breed is called "Irish Red Devil," combining color reference with temperament descriptor in a nickname that playfully acknowledges both appearance and personality. This designation reflects the same fearless, spirited nature captured by "Daredevil" while adding emphasis on the breed's striking red coat. The nickname appears more commonly in informal contexts than official breed documentation.
Among working terrier enthusiasts, particularly those maintaining the breed's hunting heritage, references to "Irish Farm Terrier" occasionally appear, acknowledging the breed's historical role as versatile farm dogs performing multiple functions including vermin control, hunting, and property protection. This functional designation emphasizes working ability over appearance, reflecting values important to those preserving the breed's original purpose rather than focusing solely on conformation show qualities.

