Jiří Weil was a Czech writer of Jewish origin and Holocaust survivor. His noted works include the two novels Life with a Star, and Mendelssohn Is on the Roof, as well as many short stories, and other novels.

Jiří Wolker was a Czech poet, journalist and playwright. He was one of the founding members of KSČ - Communist Party of Czechoslovakia - in 1921.

Jiřina Hauková was a Czech poet and translator. She was a member of the Group 42, together with her husband Jindřich Chalupecký.

Jirjis al-Makīn, known by his nisba Ibn al-ʿAmīd, was a Coptic Christian historian who wrote in Arabic. His name is sometimes anglicised as George Elmacin.

Kōjirō Iwato (岩戸 康次郎, Iwato Kōjirō; born December 13, 1951), known by his pen name Jirō Asada (浅田 次郎, Asada Jirō), is a Japanese writer.

Jiva Goswami was an Indian philosopher and saint from the Gaudiya Vaishnava school of Vedanta tradition, producing a great number of philosophical works on the theology and practice of Bhakti yoga, Vaishnava Vedanta and associated disciplines. He is known as one of the Six Goswamis of Vrindavan and was the nephew of the two leading figures, Rupa Goswami and Sanatana Goswami.

Jizang (549–623) was a Persian-Chinese Buddhist monk and scholar who is often regarded as the founder of East Asian Mādhyamaka. He is also known as Jiaxiang or Master Jiaxiang because he acquired fame at the Jiaxiang Temple.

Jo Ann Algermissen was a United States writer of contemporary romance novels, who also wrote under her maiden name, Anna Hudson from 1983 to 1998. Algermissen won three Romantic Times Reviewer's Choice Awards, for her novels I Do?, Marry-Me Christmas, and A Husband for Christmas, and was nominated for a Romantic Times Career Achievement Award.

Jo Bannister is a British crime fiction novelist.

Mary Josephine Beverley was a prolific English-Canadian writer of historical and contemporary romance novels from 1988 to 2016.