Zelda Popkin was an American writer of novels and mystery stories. She created Mary Carner, one of the first professional female private detectives in fiction. Carner was a store detective who appeared in five novels.

Zelfira Ismailovna Tregulova is a Russian art historian and curator who served as a director of the Tretyakov Gallery in Moscow between 2015 and 2023.

Zella Allen Dixson was an American writer, lecturer, librarian, and publisher. She was the longest-serving director and associate librarian of the University of Chicago Extension Division's library school.

Zella Armstrong was an American local historian who authored books about the state of Tennessee and the Southern United States, including the five-volume Notable Southern Families. A member of the Tennessee Historical Commission, she founded the Cotton Ball in Chattanooga, Tennessee. In literary circles, Armstrong was well known by reason of her work as editor, writer of fiction, and compiler of historical and genealogical records.

Zemach Shabad was a Jewish medical doctor and social and political activist. He was a member of the Senate (parliament) of the Second Polish Republic (1928) and a co-founder and vice-president of the YIVO . In 1932, Shabad toured to Palestine with Dr. Abel Lapin from Kaunas. During his trip, Shabad hosted by the Health Committee of the Knesset and the Jerusalem Medical Association.

Zena Sutherland was an American reviewer of children's literature. She is best known for her contributions to the Bulletin of the Center for Children's Books and as the author of the library science textbook Children and Books.

Zénaïde Alexeïevna Ragozin was a Russian-American author.

Zeng Pu (simplified Chinese: 曾朴; traditional Chinese: 曾樸; pinyin: Zēng Pǔ; Wade–Giles: Tseng P'u; 1872-1935) was a Chinese novelist.

Zeng Shen, better known as Zengzi, courtesy name Ziyu, was a Chinese philosopher and disciple of Confucius. He later taught Zisi, the grandson of Confucius, who was in turn the teacher of Mencius, thus beginning a line of transmitters of orthodox Confucian traditions. He is revered as one of the Four Sages of Confucianism.

Zenmaro Toki was a Japanese Naturalist tanka poet. After initially taking up tanka in his teens, he studied under Kun'en Kaneko, and when in attendance at Waseda University he socialized with other notable Naturalist poets such as Bokusui Wakayama. Later, he earned the respect of the famous poet Takuboku Ishikawa, with whom he corresponded until the latter's death in 1912.