Dame Susan Nicola Bagshaw DNZM (née Dean, born 30 September 1949) is a New Zealand doctor specialising in the health needs of young people.

She initially worked for the Family Planning Association to improve access to sexual and reproductive health services for young women by expanding the number of clinics in the South Island.

However she found that young people were too embarrassed or shy to attend the clinics and instead she designed a "one-stop shop" model, which provided a range of health services in one place.

[2] In 1995, Bagshaw established a youth health centre in central Christchurch that offered free doctor's appointments, counselling and addiction support services for young people.

[1][2] In April 2023, while remaining a patron, Bagshaw stepped down from her lead role in the centre which had been re-branded as Te Tahi Youth.

She said it would allow her more time to develop a new project and open a "youth hub designed to connect services like mental health with education, transitional housing, employment, and training, and adding a creative arts centre and place for recreation".