Gáspár Heltai (born as Kaspar Helth) (c. 1490–1574) was a Transylvanian Saxon writer and printer. His name possibly derives from the village Heltau (Hungarian: Nagydisznód, today Cisnădie, Romania). Despite being a German native speaker he published many books in Hungarian from his print-shop. The brother of his son-in-law was Ferenc Dávid, Nontrinitarian and Unitarian preacher and the founder of the Unitarian Church of Transylvania.
Gaspara Stampa was an Italian poet. She is considered to have been the greatest woman poet of the Italian Renaissance, and she is regarded by many as the greatest Italian woman poet of any age.
Gaspard Abeille was a French lyric and tragic poetry poet. He received the title of Abbé and in 1704 was elected a member of the Académie française. His brother Scipion was also a poet and a surgeon.
Gaston Bachelard was a French philosopher. He made contributions in the fields of poetics and the philosophy of science. To the latter, he introduced the concepts of epistemological obstacle and epistemological break. He influenced many subsequent French philosophers, among them Michel Foucault, Louis Althusser, Dominique Lecourt and Jacques Derrida, as well as the sociologists Pierre Bourdieu and Bruno Latour.
Gaston Baty, whose full name was Jean-Baptiste-Marie-Gaston Baty, was a French playwright and theatre director. He was born in Pélussin, Loire, France.