Born in Sydney in 1975, the artist has lived and worked in Sydney and Paris since 2007. 

She works with film, performance, sculpture and installation to research and explore human behaviour in relation to notions of endurance and transformation. In her work, the human body is a site of agency and resilience through which to investigate individual and collective freedoms. 

Her work has been the subject of solo exhibitions most recently at the University of Queensland UQ Art Museum (2020); Confort Moderne, Poitiers, France (2019); Artspace, Sydney, Australia (2019); Palais de Tokyo, Paris, France (2017); NGV National Gallery of Victoria, Melbourne, Australia (2017/18); Museu António Medeiros e Almeida, Lisbon, Portugal (2015). Centre of the Centre, her solo exhibition, will be presented with MGNSW Museum and Galleries New South Wales from 2021 - 2023.

Recent group exhibitions include, Museum of Contemporary Art and Design MCAD, Manila, Philippines (2019); Kunstwerk Carlshutte, Budelsdorf, Germany (2019); Yo-Chang Art Museum, Taipei, Taiwan (2019); MACRO Museo D’Art Contemporanea Di Roma, Rome, Italy (2018); Gillman Barracks, Singapore (2017); Les Tanneries Centre d’art contemporain, Amilly, France (2017); Serralves Museum, Porto, Portugal (2016); Musée national d’art moderne - Centre Pompidou, Paris, France (2016); Centre Pompidou, Malaga, Spain (2015); The Ian Potter Museum, Melbourne, Australia (2015); Palais de Tokyo, Paris, France (2016); IAC Institute for Contemporary Art, Villeurbanne, Lyon, France (2015) and the 19th Biennale of Sydney (2014).

Her work has been presented in institutions including, CASM Centre d’Art Santa Mònica, Barcelona, Spain; National Taiwan Museum of Fine Arts, Taipei, Taiwan; NGA National Gallery of Australia, Canberra, Australia; Witte de With Center for Contemporary Art, Rotterdam, Netherlands; Museo Ar/ge Kunst, Bolzano, Italy; Centre for Contemporary Art, Prague, Czech Republic; AGNSW Art Gallery of New South Wales, Sydney, Australia; Kunstmuseum Ravensburg, Germany; Gurtrude Contemporary, Melbourne, Australia; Museu Nogueira da Silva, Braga, Portugal; ACCA Australian Centre for Contemporary Art, Melbourne, Australia; Kunstmuseum, Ravensburg, Germany; Musée Rochechouart d’art contemporain la Haute-Vienne, France; 4A Centre for Contemporary Asian Art, Sydney, Australia; Maison d’Art Bernard Anthonioz, Nogent sur Marne, France and Arte Contemporânea Videobrasil, São Paulo, Brazil.

She was the recipient of the SAM Prize for Contemporary Art in 2015. Works by O’Callaghan are held in public and private art collections including, Musée National d’Art Moderne/Centre Pompidou, France; NGV National Gallery of Victoria, Australia; FRAC Bretagne, France; MUMA Monash University of Modern Art, Australia; Artbank, Australia and the Attorney General’s Department, Australia.