A King's Counsel (post-nominal initials KC) is a senior lawyer appointed by the monarch (or their vice-regal representative) of some Commonwealth realms as a "counsel learned in the law". When the reigning monarch is a woman, the title is Queen's Counsel (QC).
The position originated in England and Wales but is now to be found in other Commonwealth realms. Some jurisdictions have retained the designation, while others have either abolished the appointment or renamed it so as to remove its monarchical nomenclature — for example, to "Senior Counsel" or "Senior Advocate".