Blanche of Lancaster, Baroness Wake of Liddell (c. 1305 – c. 1380) was an English noblewoman.
The Bishop of Ely burned down some of her houses after her husband's death in 1349 and she took legal action against him.
Edward III rebuked the bishop for the arson, and ordered him to pay damages.
In April 1372, custody of brothers John and Thomas was granted to her, as sister of their grandmother, Joan of Lancaster.
She lived on to see the start of the reign of King Edward's grandson, Richard II.