Shillelagh (Irish: Síol Éalaigh) is a barony in County Wicklow, Republic of Ireland.

[1] Shillelagh barony is located in southwest County Wicklow.

Derived from Síol Elaigh, meaning descendants of Ealach.

The Ua Tuathail (O'Tooles) were driven here in the late 12th century, following the Cambro-Norman invasion.

This article related to the geography of County Wicklow, Ireland is a stub.