- Isak Dinesen: Danish author best known for her short stories and novels, including "Babette's Feast" and "Out of Africa."
- Irving Stone: American author known for his biographical novels, such as "Lust for Life" about Vincent van Gogh and "The Agony and the Ecstasy" about Michelangelo.
- Isaac Asimov: Russian-American author and scientist, known for his science fiction writings and the Three Laws of Robotics.
- Isabel Allende: Chilean-American author known for her magical realism novels, including "The House of the Spirits" and "Of Love and Shadows."
- Ian McEwan: English author known for his novels exploring moral and ethical themes, such as "Atonement" and "Amsterdam."
- Ivan Goncharov: Russian author known for his classic 19th-century novels, including "Oblomov" and "The Precipice."
- Italo Calvino: Italian author known for his postmodern and metafictional works, including "Invisible Cities" and "If on a winter's night a traveler."