Amy MacMahon

MacMahon contested against Labor's deputy premier Jackie Trad in South Brisbane during the 2017 Queensland state election, achieving 34.4 per cent of primary votes and 46.4 per cent after preferences.^[3]

At the 2020 state election, MacMahon defeated Trad for the seat of South Brisbane, achieving 37.9 per cent of the primary vote, overtaking Trad on 34.4 per cent. MacMahon received a two-candidate-preferred vote of 55.3 per cent once preferences had been delivered.^[5][3] This followed a decision by the LNP to recommend Labor be preferenced last in South Brisbane.^[6] She became the second Greens member currently in the state parliament, with Michael Berkman in the seat of Maiwar.^[5]

In 2024, MacMahon opposed the development of 14,000 high density homes near the Cross River Rail Station in Woolloongabba, 20% of which would be set aside for affordable housing.^[7] MacMahon argued that 20% was too low, that there was inadequate infrastructure in the area, the process was "extremely undemocratic" and that developers would profit.^[7] She argued that building more housing does not necessarily reduce the cost of housing, stating that, "[e]ven in areas where you've gotten this big influx of supply it hasn't actually brought down the cost of housing."^[7]

In the 2024 Queensland state election, she lost her seat to Labor candidate Barbara O'Shea.^[8]

Queensland Legislative Assembly

Election year	Electorate	Party		Votes	FP%	+/-	2PP%	+/-	Result
2017	South Brisbane		GRN	9,549	34.40	11.70	46.50	46.50	Second
2020	South Brisbane		GRN	12,631	37.89	3.54	55.35	8.90	First
2024	South Brisbane		GRN	12,146	34.71	3.19	43.95	11.40	Second

MacMahon lives in Kangaroo Point.^[2] On 12 February 2024, MacMahon was involved in a serious car crash in Kangaroo Point, suffering head and suspected spinal injuries.^[9]