| Honorific-Suffix: | MP |
| Constituency Am: | Dunstan |
| Assembly: | South Australian House of |
| Term Start: | 23 March 2024 |
| Predecessor: | Steven Marshall |
| Party: | Labor |
| Relations: | Boyd family |
Cressida Clytie O'Hanlon (born 1972) is an Australian politician from the Labor Party.[1] She has been a member of the South Australian House of Assembly since winning the 2024 Dunstan state by-election.[2] She contested the same seat against Premier Steven Marshall in the 2022 state election.[3]
Cressida previously owned her own corporate mediating business before working as a political staffer to Reggie Martin MLC.[4]
In the 2019 Australian federal election she was the Australian Labor Party candidate in the Division of Sturt but was defeated by Liberal candidate James Stevens.[5]
In the 2024 Dunstan by-election, O’Hanlon made political history when she became the first government-backed candidate to win a seat from the opposition in a by-election in more than 116 years. [6] This is despite O'Hanlon seeing a 3.1% swing against Labor in the primary vote. Labor secured the seat by only 360 votes thanks to preferential votes from The Greens. [7]
Cressida is married to James O'Hanlon, Director of Citadel Secure an Australian Defense and Space Industries consulting company[8] and her grandparents, part of the Boyd artistic dynasty, were the artists David Boyd and Hermia Boyd.[9]