Kajsa Rinaldo Persson (born 11 November 1997) is a Swedish tennis player.

Rinaldo Persson has a career-high singles ranking of 288 by the Women's Tennis Association (WTA), achieved on 28 October 2024, and a career-high WTA doubles ranking of 532, reached on 21 August 2023. She has won five titles in singles and four in doubles on the ITF Circuit.

Rinaldo Persson has represented Sweden in the Fed Cup, where she has a win–loss record of 10–10, as of April 2024.

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Loss	0–1	May 2015	ITF Båstad, Sweden	W10	Clay	Laura Schaeder	7–5, 0–6, 2–6
Win	1–1	May 2015	ITF Båstad, Sweden	W10	Clay	Valeria Prosperi	6–4, 7–6(1)
Win	2–1	Jun 2022	ITF Heraklion, Greece	W15	Clay	Irina Balus	4–6, 6–4, 6–4
Win	3–1	Nov 2022	ITF Lousada, Portugal	W15	Hard (i)	Celia Cerviño Ruiz	7–5, 6–2
Win	4–1	Apr 2024	ITF Boca Raton, United States	W35	Clay	Mayu Crossley	7–5, 7–6(8)
Win	5–1	May 2024	ITF Bethany Beach, United States	W35	Clay	Akasha Urhobo	4–6, 6–3, 6–2
Win	6–1	Aug 2024	ITF Koksijde, Belgium	W35	Clay	Jenny Lim	6–4, 4–6, 7–6(5)

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Loss	0–1	Jan 2015	ITF Sharm El Sheikh, Egypt	W10	Hard	Caroline Rohde-Moe	Shiho Akita Yuuki Tanaka	2–6, 6–7(3)
Win	1–1	Sep 2015	ITF Antalya, Turkey	W10	Hard	Jacqueline Cabaj Awad	Sara Giménez Fanny Östlund	6–3, 6–4
Loss	1–2	Nov 2015	ITF El Kantaoui, Tunisia	W10	Hard	Natalija Šipek	Linnéa Malmqvist Yana Sizikova	4–6, 2–6
Loss	1–3	Apr 2017	ITF Sharm El Sheikh, Egypt	W15	Hard	Emilie Francati	Laura-Ioana Andrei Melanie Klaffner	4–6, 5–7
Win	2–3	Jun 2017	ITF Hammamet, Tunisia	W15	Clay	Barbara Kötelesová	Victoria Muntean Julia Wachaczyk	7–6(5), 4–6, [10–7]
Loss	2–4	Sep 2017	ITF Kyoto, Japan	W15	Hard (i)	Ayaka Okuno	Akari Inoue Michika Ozeki	6–4, 3–6, [8–10]
Loss	2–5	Feb 2021	ITF Sharm El Sheikh, Egypt	W15	Hard	Julita Saner	Lisa-Marie Rioux Erika Sema	1–6, 6–1, [6–10]
Win	3–5	Oct 2021	ITF Antalya, Turkey	W15	Clay	Vanessa Ersöz	Jasmijn Gimbrère Irene Lavino	4–6, 6–1, [10–4]
Win	4–5	Aug 2023	ITF Koksijde, Belgium	W25	Clay	Maileen Nuudi	Eva Vedder Stéphanie Visscher	6–3, 2–6, [10–5]

Edition	Stage	Date	Location	Against	Surface	Partner	Opponents	W/L	Score
2017	ZG2 R/R	Apr 2017	Šiauliai (LTU)	Slovenia	Hard (i)	Jacqueline Cabaj Awad	Kaja Juvan Andreja Klepač	L	3–6, 5–7
				Norway		Jacqueline Cabaj Awad	Astrid Wanja Brune Olsen Malene Helgø	W	6–2, 6–2

• Kajsa Rinaldo Persson at the Women's Tennis Association
• Kajsa Rinaldo Persson at the International Tennis Federation
• Kajsa Rinaldo Persson at the Billie Jean King Cup (archived)
• Kajsa Rinaldo Persson at ESPN.com