Catherine Brighid Livingstone (born 17 September 1955) is an Australian businesswoman who has held positions in the Commonwealth Bank, CSIRO, Macquarie Group and Telstra.

Catherine Brighid Livingstone was born in Nairobi, Kenya, on 17 September 1955. In 1960, her family migrated to Australia.

She attended Loreto Normanhurst School.

She graduated in 1977 with a Bachelor of Arts in Accounting with first class honours from Macquarie University in Sydney.

In 1992, she attended the International Program for Executive Development in Switzerland.

After graduating, Livingstone joined the accountancy firm of Price Waterhouse, working in both Sydney and London. She then held several accounting and management roles at Nucleus Ltd, finally reaching the position of chief executive, finance, before being made the CEO of one of its subsidiaries, Cochlear Limited, in 1994. In January 1995 she was appointed a director of Cochlear (UK) Limited, and in December 1999 of Cochlear Europe. She resigned from both positions in September 2000.

Livingstone was director of the Sydney Institute from 1998 to 2005, director of the Rural Press Foundation, and chair and director of the Australian Business Foundation from 2002 to 2005.

In 2000, she was appointed chair of Telstra Corporation, a position she retained until 2016.