Joan Champernowne, Lady Denny (died 1553) was a lady-in-waiting at the court of King Henry VIII of England.
Joan was born in Modbury, Devon on an unknown date, but no later than 1513, the daughter of Sir Philip Champernowne and his wife, K(C)atherine Carew.
[2] In 1525 she married Sir Anthony Denny, who at the end of King Henry's reign was widely considered to be his most trusted servant.
[3] Joan was considered to be both beautiful and intelligent,[4] and a member of the burgeoning Protestant faction at court along with her husband.
They sent Henry VIII a joint letter which was signed by Mabel, Lady Southampton, Margaret Tallebois, Margaret Howard (sister of Queen Catherine Howard), Alice Browne, Anne Knyvett (daughter of Thomas Knyvett), "Jane Denny", Jane Meutas, Anne Bassett, Elizabeth Tyrwhitt, and Elizabeth Harvey.