[3] Nunn has a brother and two sisters and in 1976, his family moved to a farm called Leura Hill near Myponga in South Australia.

[3] In 1990, after teaching for four years in several South Australian high schools, Chris and his new partner Vicki opened a general store in Port Vincent.

[3] With wife Vicki, he has four children; he was previously married to Olympic athlete Glynis Nunn (née Saunders).

[5] Chris Nunn has stated that the greatest influences on his life have been his parents, Lance Rosser and Dr John Daly, Australian athletics Olympic coach.

[3] Nunn attended the 1988 Summer Paralympics in Seoul as a support coach for amputee track and field athletes.

[3] In December 1990, he was offered a part-time coaching position in the new Athletes with a Disability program at the Australian Institute of Sport (AIS).

[10] Whilst at the AIS, Nunn played a significant role in establishing, developing and gaining acceptance of high performance programs for athletes with a disability.

In November 2013, Nunn was appointed chef de mission for the Australian Team for the 2014 Sochi Winter Paralympics.