William Cecil, 1st Baron Burghley, English academic and politician, Lord High Treasurer (died 1598)

William Cecil, 1st Baron Burghley, was an English statesman, the chief adviser of Queen Elizabeth I for most of her reign, twice Secretary of State and Lord High Treasurer from 1572. In his description in the Encyclopædia Britannica Eleventh Edition, A.F. Pollard wrote, "From 1558 for forty years the biography of Cecil is almost indistinguishable from that of Elizabeth and from the history of England."

The Lord High Treasurer was an English government position and has been a British government position since the Acts of Union of 1707. A holder of the post would be the third-highest-ranked Great Officer of State in England, below the Lord High Steward and the Lord High Chancellor of Great Britain.