Alison Bai (born 18 January 1990) is an Australian former tennis player. Her highest WTA singles ranking is No. 305, which she reached on 2 November 2015. Her career-high in doubles is 125, set on 20 January 2020.

On the ITF Circuit, Bai won her first singles title in 2015 at the $15k event on grass in Mildura having reached the final the previous year. In 2018, she reached the final of the $25k event in Changsha, China, defeating top seed Zhu Lin in the second round.

She has also won thirteen doubles titles on the ITF Circuit, including two titles at $60k tournaments in Canberra (with Zoe Hives in 2017) and Baotou (with Aleksandrina Naydenova in 2018). In 2018, she achieved her best result on the WTA Tour, reaching the doubles semifinal of the Hobart International, partnering Lizette Cabrera.

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Loss	0–1	Mar 2014	ITF Mildura, Australia	15,000	Grass	Jang Su-jeong	1–6, 3–6
Win	1–1	Mar 2015	ITF Mildura, Australia	15,000	Grass	Kimberly Birrell	6–3, 6–3
Loss	1–2	Jun 2018	ITF Changsha, China	25,000	Hard	Han Xinyun	5–7, 6–0, 4–6

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Loss	0–1	Oct 2005	ITF Lyneham, Australia	25,000	Clay	Jenny Swift	Casey Dellacqua Daniella Jeflea	4–6, 3–6
Loss	0–2	Oct 2007	ITF Rockhampton, Australia	25,000	Hard	Jessica Moore	Courtney Nagle Robin Stephenson	4–6, 3–6
Loss	0–3	Mar 2008	ITF Hamilton, New Zealand	10,000	Hard	Emelyn Starr	Maki Arai Yurina Koshino	6–7(3), 6–7(2)
Loss	0–4	Mar 2009	ITF North Shore City, New Zealand	10,000	Hard	Renee Binnie	Kim So-jung Ayaka Maekawa	5–7, 6–7(4)
Loss	0–5	Aug 2009	ITF Qianshan, China	10,000	Hard	Sacha Jones	Liang Chen Sun Shengnan	2–6, 4–6
Loss	0–6	Sep 2010	ITF Alice Springs, Australia	25,000	Hard	Emelyn Starr	Erika Sema Yurika Sema	5–7, 1–6
Win	1–6	Oct 2010	ITF Mount Gambier, Australia	25,000	Hard	Ana Clara Duarte	Ayu Fani Damayanti Jessy Rompies	w/o
Loss	1–7	Sep 2012	ITF Salisbury, Australia	10,000	Hard	Sally Peers	Ayu Fani Damayanti Lavinia Tananta	6–7(5), 0–6
Win	2–7	Mar 2013	ITF Sydney, Australia	10,000	Hard	Tyra Calderwood	Anja Dokic Jessica Moore	7–6(3), 6–4
Win	3–7	Aug 2014	ITF Nottingham, UK	10,000	Hard	Mari Tanaka	Katie Boulter Freya Christie	6–4, 6–3
Win	4–7	Aug 2014	ITF Oldenzaal, Netherlands	10,000	Clay	Lu Jiajing	Elyne Boeykens Jainy Scheepens	3–6, 6–4, [10–6]
Win	5–7	Aug 2014	ITF Rotterdam, Netherlands	10,000	Clay	Cornelia Lister	Brandy Mina Jainy Scheepens	7–5, 6–4
Loss	5–8	Oct 2014	ITF Cairns, Australia	15,000	Hard	Ayaka Okuno	Jessica Moore Abbie Myers	2–6, 2–6
Loss	5–9	Feb 2016	ITF Perth, Australia	25,000	Hard	Abbie Myers	Ashleigh Barty Jessica Moore	6–3, 4–6, [8–10]
Loss	5–10	Jun 2016	Surbiton Trophy, UK	50,000	Grass	Robin Anderson	Sanaz Marand Melanie Oudin	4–6, 5–7
Win	6–10	Oct 2016	ITF Cairns, Australia	25,000	Hard	Lizette Cabrera	Katarzyna Kawa Sandra Zaniewska	7–5, 5–7, [12–10]
Loss	6–11	Oct 2016	Canberra International, Australia	50,000	Hard	Lizette Cabrera	Jessica Moore Storm Sanders	3–6, 4–6
Loss	6–12	Feb 2017	Burnie International, Australia	60,000	Hard	Varatchaya Wongteanchai	Riko Sawayanagi Barbora Štefková	6–7(6), 6–4, [7–10]
Loss	6–13	Feb 2017	ITF Clare, Australia	25,000	Hard	Erika Sema	Beatriz Haddad Maia Genevieve Lorbergs	4–6, 3–6
Win	7–13	Jun 2017	ITF Wuhan, China	25,000	Hard	Lu Jiajing	Jiang Xinyu Tang Qianhui	6–2, 7–6(3)
Win	8–13	Nov 2017	Bendigo International, Australia	60,000	Hard	Zoe Hives	Asia Muhammad Arina Rodionova	4–6, 6–4, [10–8]
Loss	8–14	Feb 2018	ITF Perth, Australia	25,000	Hard	Lu Jiajing	Jessica Moore Olivia Tjandramulia	5–7, 7–6(8), [9–11]
Win	9–14	May 2018	ITF Baotou, China	60,000	Clay	Aleksandrina Naydenova	Natalija Kostić Nika Kukharchuk	6–4, 0–6, [10–6]
Loss	9–15	Jun 2018	ITF Luzhou, China	25,000	Hard	Andreea Roșca	Han Xinyun Lu Jingjing	3–6, 3–6
Win	10–15	Mar 2019	Clay Court International, Australia	25,000	Clay	Jaimee Fourlis	Naiktha Bains Tereza Mihalíková	6–2, 6–2
Loss	10–16	May 2019	Fukuoka International, Japan	60,000	Carpet	Kristie Ahn	Naomi Broady Heather Watson	w/o
Win	11–16	Jul 2019	ITF Corroios, Portugal	25,000	Hard	Paige Hourigan	Francisca Jorge Olga Parres Azcoitia	3–6, 6–2, [14–12]
Loss	11–17	Sep 2019	Darwin International, Australia	60,000	Hard	Jaimee Fourlis	Destanee Aiava Lizette Cabrera	4–6, 6–2, [3–10]
Loss	11–18	Oct 2019	ITF Brisbane, Australia	25,000	Hard	Paige Hourigan	Destanee Aiava Naiktha Bains	3–6, 3–6
Win	12–18	Jan 2020	Canberra International, Australia[a]	25,000	Hard	Jaimee Fourlis	Anna Bondár Pemra Özgen	5–7, 6–4, [10–8]
Win	13–18	Feb 2020	Launceston International, Australia	25,000	Hard	Jaimee Fourlis	Alicia Smith Abigail Tere-Apisah	7–6(4), 6–3
Loss	13–19	Jan 2022	Bendigo International, Australia	60,000+H	Hard	Alana Parnaby	Fernanda Contreras Alycia Parks	3–6, 1–6
Loss	13–20	Feb 2022	ITF Canberra, Australia	25,000	Hard	Jaimee Fourlis	Asia Muhammad Arina Rodionova	3–6, 6–3, [6–10]
Loss	13–21	Feb 2022	ITF Canberra, Australia	25,000	Hard	Jaimee Fourlis	Asia Muhammad Arina Rodionova	6–7(2), 6–7(5)

• Alison Bai at the Women's Tennis Association
• Alison Bai at the International Tennis Federation
• Alison Bai at Tennis Australia
• Alison Bai at ESPN.com