She joined The Guardian in 2000 and, as one of the newspaper's columnists, writes three articles each week on current affairs, celebrity, and sport.

Hyde was born at St George's Hospital, London,[1] the daughter of Sir Alastair Edgcumbe James Dudley-Williams, 2nd Baronet, and his wife, the former Diana Elizabeth Jane Duncan.

Through her father, she is the granddaughter of aviation pioneer and Conservative politician Sir Rolf Dudley-Williams, 1st Baronet.

She attended Downe House School, near Newbury in Berkshire,[2] and read English at Christ Church, Oxford.

[3][4] In an otherwise unrelated article in The Guardian, she wrote: "I am only called Marina Hyde because my real name was too long to fit across a single column in The Sun, where I started out".

In the front-page story Hyde had accused The Sun of "blowing a giant raspberry at Lord Justice Leveson’s inquiry".

[18] In 2020 Hyde won the London Press Club's Edgar Wallace Award for writing or reporting of the highest quality.

[27] In 2022, Hyde was hired as a writing executive producer on an HBO pilot originating from director Sam Mendes about the process of superhero filmmaking in Hollywood.

In November 2023, Hyde began hosting a podcast with Richard Osman, titled The Rest Is Entertainment.