Sarah Hirini MNZM (née Goss; born 9 December 1992) is a New Zealand women's rugby union player.

[7] After leaving high school having obtained a scholarship she commenced full time studies at Massey University, undertaking a Bachelor of Arts in Māori and sports science.

"[6][7] She progressed to playing for the Manawatu Secondary School Girls team from 2007 to 2010, and it was while she was captain in 2010, that they won the regional competition without any points scored against them.

[10][11] Hirini who was in her second year of study at Massey University at the time, attended one of the trials where along with the other participants she was put through various fitness, speed, rugby skill and character assessment activities.

[12] Hirini was selected to join Lauren Burgess, Marama Davis, Lavinia Gould, Carla Hohepa, Chyna Hohepa, Linda Itunu, Kayla McAlister, Huriana Manuel (captain), Tyla Nathan Wong, Amanda Rasch and Portia Woodman in New Zealand's team for inaugural 2012–13 IRB Women's Sevens World Series.

[6] Captained by Manuel the team won the series following a fourth at Houston and wins at Guangzhou and Amsterdam having scored 169 points and conceded 34.

After captain Huriana Manuel suffered a serious ankle injury in pool play against the USA at the fifteen-a-side 2014 Women's Rugby World Cup, which ruled her out of playing for the Sevens team Hirini was promoted to captain and was to retain the role even after Manuel returned to the team.

[14] In the final against Australia at the Dubai tournament in early December 2014 New Zealand was 17–0 down at half-time, but came back to a score of 17–14 with a minute to play.

[15] In 2016 she captained the New Zealand Women's Rugby Sevens team that won a silver medal at the Rio Olympics.

Hirini didn't play for the fifteen-a-side Black Ferns again until 2021, due to a combination of sevens commitments and the COVID-19 pandemic.

At the end of the international season she took up the enquiry of her former Black Ferns team-mate Janna Vaughan who was head coach of the Yokkaichi based team Mie Pearls, to play for them in the Japanese Taiyo Seimei Women's Sevens competition.

[40] Following the end of the tournament she received an emotional haka and farewell from her teammates before she was evaluated back to New Zealand, where on 15 December she underwent surgery to repair her anterior cruciate ligament.

[42] By the end of the regular season she was back to non-contact training with the team and attended the grand final tournament in Madrid on the weekend of the 31 May and 2 June 2024 as an observer.

[46][47] A scan after the day after the game found that she had multiple fractures in her face, which medical advice identified would heal with rest.

[8] In the 2019 Queen's Birthday Honours, Hirini was appointed a Member of the New Zealand Order of Merit, for services to rugby.

At the 2023 World Rugby Sevens Series Awards in May of that year Hirini was named as a member of the 2023 women's dream team.