Eliza McCartney (born 11 December 1996) is a New Zealand track and field athlete who competes in the pole vault and won the bronze medal in this event at the 2016 Summer Olympics.

She played several other sports in her youth, including cross country running, basketball, touch rugby, squash, tennis, swimming, and water polo.

[8] Eventually, she moved onto track and field,[9] being a successful high jumper in her early teens before beginning pole vaulting in 2011.

[15] In July 2014 McCartney took the bronze medal at the 2014 World Junior Championships in Athletics, with a vault of 4.45 m (14 ft 7 in) which was her first New Zealand national record.

Regardless, the Oceanian record was broken later in July 2016 by Alana Boyd of Australia, with a jump of 4.81 m. McCartney made her senior international debut at the March 2016 IAAF World Indoor Championships in Portland, Oregon.

[10] BMX rider Sarah Walker, an Olympic silver medallist, approached McCartney at the Halberg Awards ceremony on 18 February 2016 and has been mentoring her since.

[28] On 22 February 2017, McCartney equalled her indoor national record of 4.70 m (15 ft 5 in) at the Vertical Pursuit, held at Auckland's Britomart precinct.

[30] On 26 May 2018, Mccartney again broke her national and Oceanian records when she jumped a height of 4.85 m (15 ft 10+3⁄4 in) at the Prefontaine Classic in Oregon.

[36][37] McCartney won a silver medal at the 2024 World Athletics Indoor Championships in Glasgow, Scotland, clearing 4.80 m but losing out on gold to Britain's Molly Caudery on count back.

[41] McCartney's 4.80 m vault that won her the Olympic bronze medal was voted New Zealand's Favourite Sporting Moment at the Halberg Awards for 2016.