Dianna Fuemana emerged on the New Zealand theatre scene in 1999 with her one woman show Mapaki. She is credited with being the first New Zealand Pacific playwright to merge the Niue and New Zealand born way of life in professional theatre. In the same year, she was nominated at the Chapman Tripp Theatre Awards for Outstanding New Writer and best upcoming actress of the Year. Mapaki was performed in New Zealand then toured across the United States and in Athens, Greece. Her next play was Jingle Bells, 2001. Dianna completed a Master of Creative and Performing Arts with honours in 2005 at the University of Auckland, writing her third play The Packer during her study. The Packer was performed in New Zealand, Australia, the Edinburgh Fringe Festival and was regularly revived. Her fourth play My Mother Dreaming premiered in Auckland in 2005.
Falemalama was produced during a residency in 2006 at the Pangea World Theater in Minneapolis, USA and toured to the 10th Festival of Pacific Arts in Pago Pago 2008, Niue Arts Festival 2009 and the Planet Indigenous Festival in Toronto 2009. Dianna has held writer residencies in Niue and with New World Theater in Amherst, USA. She has been a guest writer at the Tahiti writers festival and the Auckland Readers and Writers festivals.
In 2008 she won the Pacific Innovation and Excellence Award, a Creative New Zealand Pasifika Arts Award.
Her television writing credits include episodes of Interrogation and Good Hands. She was the recipient of Script to Screen's US Screenwriting Scholarship Internship to Killer Films in 2012.