People educated at Kesteven and Grantham Girls' School

Margaret Hilda Thatcher, Baroness Thatcher, was a British stateswoman who served as Prime Minister of the United Kingdom from 1979 to 1990 and Leader of the Conservative Party from 1975 to 1990. She was the longest-serving British prime minister of the 20th century and the first woman to hold the office. As prime minister, she implemented policies that came to be known as Thatcherism. A Soviet journalist dubbed her the "Iron Lady", a nickname that became associated with her uncompromising politics and leadership style.

British sprinter

British field hockey player (1992-)

English singer-songwriter (born 1999)

English actress (1916–2004)

UK politician (born 1943)

British psychotherapist