Born in Christchurch 1962, Marian Maguire graduated from the University of Canterbury in 1984 and in 1986 studied at the Tamarind Institute of Lithography, Albuquerque, USA. During 1991 she was Artist in Residence at the Otago Polytechnic School of Art and was Artist in Residence at Tylee Cottage, Whanganui in 2010. She received an Award for Excellence from the Canterbury Community Trust in 1998. She has exhibited extensively in solo and group shows in New Zealand and internationally.

Marian is best known for her lithographs and etchings which combine New Zealand history with classical Greek vase painting: The Odyssey of Captain Cook (2005), The Labours of Herakles (2008), Titokowaru's Dilemma (2011). Alongside the narrative series she has also produced many exhibitions investigating architectural structures, geometric abstraction and invented botanical subjects in drawing and painting as well as print.

Her work is represented in numerous public and private collections including: Te Papa Taongawera, Museum of New Zealand; Auckland Art Gallery, Christchurch Art Gallery, Massey University, The Hocken Collection, University of Otago: National Gallery of Australia; Cambridge University, United Kingdom; The Birthplace of Captain Cook Museum, Middlesborough, United Kingdom and the British Museum.

Her 2008 series, The Labours of Herakles, is currently on tour in Europe.