The "revenge dress" is an evening gown worn by Diana, Princess of Wales to a 1994 dinner at the Serpentine Gallery in Kensington Gardens.

The garment has been interpreted as having been worn by Diana "in revenge" for the televised admission of adultery by her husband Charles, then Prince of Wales.

[3] Diana wore the dress to a 29 June 1994 fundraising dinner hosted by Vanity Fair magazine for the Serpentine Gallery in Kensington Gardens.

[1] Penny Goldstone wrote in Marie Claire in 2020 that the dress remains one of Diana's "most iconic styles of all time".

[10] The day following the event, The Daily Telegraph wrote: The Princess of Wales did not have to dine out before the television cameras at the Serpentine Gallery last night in order to avoid seeing her husband sharing his soul with the nation on the box.

But also: fashion hath no greater thrill than when being deployed for the purpose of expressing rage, froideur or an insouciant dose of 'look what you're missing'".

[8] Georgina Howell, in her 1998 book Diana, Her Life in Fashion, wrote that the dress was "possibly the most strategic dress ever worn by a woman in modern times", further describing it as a "devastating wisp of black chiffon" with which Diana "flipped her husband clean off the front pages" following the broadcast of the programme.