Knatchbull is a surname. Notable people with the surname include:
Adrian Knatchbull-Hugessen
Alexandra Knatchbull
Dora Knatchbull, married name of Dora Bright (1862–1951), English composer and pianist
Doreen Knatchbull, Baroness Brabourne
Edward Knatchbull (disambiguation), various people
Edward Knatchbull-Hugessen, 1st Baron Brabourne
John Knatchbull, 7th Baron Brabourne
Leonora Knatchbull
Michael Knatchbull
Michael Knatchbull, 5th Baron Brabourne
Nicholas Knatchbull
Norton Knatchbull (disambiguation), various people
Patricia Knatchbull, 2nd Countess Mountbatten of Burma
