Seth was born on 30 August 1964 in Worsthorne, Lancashire, England.[1] She holds Irish and British citizenship.[2] She was brought up in England, Scotland, Switzerland, Belgium, and South America.[3][4] She was educated at Colegio Francia in Caracas, Venezuela, at Lycée Sainte-Croix in Fribourg, Switzerland, and at Lycée français de Belgique in Belgium.[1]
Seth spent most of her academic career teaching in France. She completed the Agrégation in 1995, and the Habilitation à diriger des recherches (HDR) in 2004.[1] From 1995 to 2000, she was a Professeur agrégé at the Académie de Rouen.[5] From 2000 to 2006, she was a tenuredlecturer in 18th-century French literature at the University of Rouen.[5] From 2006, she was Professor of 18th-century French literature at Nancy 2 University.[1] When Nancy 2 University was merged with other universities to become the University of Lorraine, she continued her teaching at the new institution.[1] Between 2013 and 2014, she was also a World Leading Researcher at Queen's University, Belfast.[5] She has been a visiting professor at Indiana University (Bloomington, USA), at the Université de Gafsa (Tunisia) and at the University of Augsburg (Germany);..[8][9] She has been a Guest Researcher at the University of Bergamo (Italy), a Bogliasco Foundation Fellow, a Chawton House Fellow and was Senior Anniversary Fellow at the Institute of Advanced Studies in the Humanities (IASH) of the University of Edinburgh in 2023.[10]
In October 2012, Seth gave the fifth annual Burgerhartlezing (Burgerhart Lecture) under the title Nobody's Children? Foundlings, Identity and Individual Rights in the Enlightenment.[12] In March 2014, she gave the John Rule Memorial Lecture at the University of Southampton.[13]
Martine Bercot; Michel Collot; Catriona Seth, eds. (2000). Anthologie de la poésie française: XVIIIe–XXe siècles (in French). Paris: Gallimard. ISBN978-2070115990.
Catriona Seth (2006). Marie-Antoinette: Anthologie et dictionnaire (in French). Paris: Laffont.
Catriona Seth (2008). Les Rois aussi en mouraient. Les Lumières en lutte contre la petite vérole (in French). Paris: Desjonquères.
Robert Kahn; Catriona Seth (2010). La Retraduction (in French). Mont-Saint-Aignan: Publications de l'Université de Rouen et du Havre. ISBN978-2877758017.
^"Seth, Catriona". European Union Democracy Observatory on Citizenship. European University Institute. Archived from the original on 30 August 2017. Retrieved 30 August 2017.
^ abSeth, Catriona (1995). Évariste Parny (1753-1814). theses.fr (These de doctorat). Archived from the original on 1 December 2017. Retrieved 25 November 2017.