The Northampton-born former head of MI5 has been appointed to the Order of the Garter by the Queen.
Buckingham Palace announced that the Eliza Manningham-Buller - whose full title is Baroness Northampton in the county of Northamptonshire, will formally receive the honour in June.
Recipients are chosen because they have held public office, contributed to national life or served the sovereign personally.
Baroness Manningham-Buller, 65, was director general of MI5, from 2002 until her retirement in 2007. She joined MI5 in 1974.
Born in Northampton, Lady Manningham-Buller became a crossbench life peer in April 2008.
She took the full title of Baroness Manningham-Buller of Northampton in the County of Northamptonshire.
Baroness Manningham-Buller visited the University of Northampton in November last year where she spoke to students about her career.
During her five-year tenure as director general, Baroness Manningham-Buller and her team uncovered 15 serious terrorist plots and were involved in 12 big operations, including Operation Overt which led to the successful aversion of the liquid bomb plot in the summer of 2006.
The 2005 London bombings took place under her watch.
New appointments to the Order of the Garter are announced on St George’s Day and the ceremonies take place on Garter Day on the Monday of Royal Ascot week in June.