Offaly (disambiguation)

Offaly may refer to:
 * County Offaly, Ireland, formerly called King's County
 * Offaly (Dáil constituency)
 * King's County (Parliament of Ireland constituency)
 * King's County (UK Parliament constituency)
 * Offaly GAA
 * A historic region of County Kildare, divided into the baronies of Offaly West and Offaly East
 * The medieval Kingdom of Uí Failghe