Justina Mikulskytė (born 6 February 1996) is a Lithuanian tennis player.

Mikulskytė has won six singles titles and 21 doubles titles on the ITF Women's Circuit. On 9 September 2024, she reached her best singles ranking of world No. 206, and on 2 December 2024, she peaked at No. 148 in the WTA doubles rankings.

Playing for Lithuania Fed Cup team, Mikulskytė has an overall win–loss record of 24–16 (doubles 12–6), as of July 2024.

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Loss	0–1	Jun 2019	ITF Amarante, Portugal	W15	Hard	Georgia Drummy	6–7(4), 3–6
Win	1–1	Sep 2019	ITF Bucha, Ukraine	W15	Clay	Taisya Pachkaleva	7–5, 6–2
Win	2–1	Oct 2019	ITF Sharm El Sheikh, Egypt	W15	Hard	Valentina Ryser	3–6, 6–4, 6–3
Win	3–1	May 2021	ITF Santa Margarita de Montbui, Spain	W15	Hard	Celia Cerviño Ruiz	6–2, 6–0
Loss	3–2	Jul 2021	President's Cup, Kazakhstan	W25	Hard	Anastasia Tikhonova	6–2, 5–7, 1–6
Win	4–2	Jan 2022	ITF Manacor, Spain	W25	Hard	Yuki Naito	6–3, 6–3
Loss	4–3	Jun 2023	ITF La Marsa, Tunisia	W40	Hard	Jana Kolodynska	2–6, 0–2 ret.
Loss	4–4	Sep 2023	ITF Saint-Palais-sur-Mer, France	W40	Clay	Gergana Topalova	5–7, 7–5, 1–6
Loss	4–5	Dec 2023	ITF Mogi das Cruzes, Brazil	W25	Clay	Francisca Jorge	1–6, 1–6
Win	5–5	Mar 2024	ITF Gurugram, India	W35	Hard	Ku Yeon-woo	6–0, 6–1
Win	6–5	Sep 2024	ITF Saint-Palais-sur-Mer, France	W50	Clay	Kaitlin Quevedo	7–5, 7–6(2)
Win	7–5	Jan 2025	Porto Women's Indoor ITF, Portugal	W50	Hard (i)	Tyra Caterina Grant	6–7(2), 6–3, 6–2

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Win	1–0	Aug 2014	Telavi Open, Georgia	W10	Clay	Agnė Čepelytė	India Maggen Lenka Wienerová	6–1, 7–5
Loss	1–1	Sep 2014	ITF Antalya, Turkey	W10	Hard	Agnė Čepelytė	Yumi Nakano Kotomi Takahata	1–6, 5–7
Win	2–1	Jun 2019	ITF Madrid, Spain	W15	Hard	Christina Rosca	Ioana Loredana Roșca Julia Terziyska	6–3, 6–7(8), [10–8]
Loss	2–2	Jul 2019	ITF Cancún, Mexico	W15	Hard	Tiphanie Fiquet	Adriana Reami Anna Rogers	6–7(1), 4–6
Win	3–2	Sep 2019	ITF Vrnjačka Banja, Serbia	W15	Clay	Mariana Dražić	Kristýna Hrabalová Laura Svatíková	6–2, 7–6(5)
Win	4–2	Oct 2019	ITF Sharm El Sheikh, Egypt	W15	Hard	Dasha Ivanova	Romana Čisovská Stefania Rogozińska Dzik	6–1, 7–5
Win	5–2	Oct 2019	ITF Sharm El Sheikh, Egypt	W15	Hard	Dasha Ivanova	Katarína Kužmová Anastasiya Poplavska	5–7, 6–4, [10–8]
Win	6–2	Nov 2019	ITF Monastir, Tunisia	W15	Hard	Nadia Echeverría Alam	Lamis Alhussein Abdel Aziz Célestine Avomo Ella	7–6(6), 7–6(2)
Win	7–2	Jan 2020	ITF Cancún, Mexico	W15	Hard	Lian Tran	Victoria Rodríguez Sofia Sewing	6–2, 4–6, [10–7]
Win	8–2	Nov 2020	ITF Haabneeme, Estonia	W15	Hard (i)	Lexie Stevens	Emily Appleton Martyna Kubka	6–2, 6–1
Loss	8–3	Feb 2021	ITF Sharm El Sheikh, Egypt	W15	Hard	Miharu Imanishi	Kristýna Lavičková Anna Sisková	6–7(0), 4–6
Win	9–3	May 2021	ITF Platja d'Aro, Spain	W25	Clay	Oana Georgeta Simion	Alex Eala Oksana Selekhmeteva	6–3, 7–5
Win	10–3	May 2021	ITF Santa Margarita de Montbui, Spain	W15	Hard	Victoria Bosio	Celia Cerviño Ruiz Olivia Nicholls	4–6, 6–1, [10–7]
Loss	10–4	Jun 2021	ITF Vilnius, Lithuania	W15	Hard (i)	Akvilė Paražinskaitė	Ekaterina Makarova Anna Morgina	2–6, 6–3, [2–10]
Win	11–4	Aug 2021	ITF Parnu, Estonia	W25	Clay	Anna Sisková	Rutuja Bhosale Magali Kempen	6–7(5), 6–3, [10–5]
Loss	11–5	Aug 2021	ITF Ourense, Spain	W25	Hard	Alba Carrillo Marin	Lee Ya-hsuan Ekaterina Yashina	2–6, 3–6
Loss	11–6	Sep 2021	ITF Trieste, Italy	W25	Clay	Olivia Tjandramula	Andreea Prisacariu Nika Radišić	5–7, 2–6
Win	12–6	Feb 2022	ITF Sharm El Sheikh, Egypt	W25	Hard	Isabelle Haverlag	Irina Fetecău Simona Waltert	6–1, 6–2
Loss	12–7	Feb 2022	GB Pro-Series Glasgow, UK	W25	Hard (i)	Valeria Savinykh	Quinn Gleason Catherine Harrison	4–6, 1–6
Win	13–7	Apr 2022	Open de Seine-et-Marne, France	W60	Hard (i)	Isabelle Haverlag	Sofya Lansere Oksana Selekhmeteva	6–4, 6–2
Win	14–7	May 2022	ITF Santa Margherita di Pula, Italy	W25	Clay	Nika Radišić	Leyre Romero Gormaz Arantxa Rus	4–6, 7–5, [10–7]
Loss	14–8	Jul 2022	ITF Palma del Río, Spain	W25+H	Hard	Celia Cerviño Ruiz	Valeria Savinykh Fanny Stollár	6–7(3), 2–6
Win	15–8	Jul 2022	ITF Corroios-Seixal, Portugal	W25	Hard	Cody Wong	Lee Ya-hsuan Wu Fang-hsien	6–2, 7–5
Loss	15–9	Jul 2022	Open Araba en Femenino, Spain	W60	Hard	Isabelle Haverlag	Maria Bondarenko Ioana Loredana Roșca	6–4, 4–6, [9–11]
Win	16–9	Aug 2022	ITF Pärnu, Estonia	W25	Clay	Valeriya Strakhova	Eleni Christofi Gergana Topalova	6–2, 4–6, [10–8]
Loss	16–10	Jan 2023	GB Pro-Series Loughborough, UK	W25	Hard (i)	Bibiane Schoofs	Viktória Morvayová Anna Sisková	3–6, 7–6(3), [6–10]
Win	17–10	Mar 2023	Open de Touraine, France	W25	Hard (i)	Veronika Erjavec	Chiara Scholl Anita Wagner	6–4, 6–0
Win	18–10	Sep 2023	ITF Skopje, North Macedonia	W40	Clay	Zhibek Kulambayeva	Rina Saigo Yukina Saigo	6–3, 6–4
Win	19–10	Oct 2023	ITF Santa Margherita di Pula,, Italy	W25	Clay	Veronika Erjavec	Nuria Brancaccio Angelica Moratelli	7–6(6), 6–0
Loss	19–11	Dec 2023	ITF Mogi das Cruzes, Brazil	W25	Clay	Nicole Fossa Huergo	Ana Candiotto Melany Krywoj	2–6, 6–1, [6–10]
Win	20–11	Dec 2023	ITF Vacaria, Brazil	W60	Clay (i)	Romina Ccuno	Francisca Jorge Matilde Jorge	6–2, 6–3
Loss	20–12	Feb 2024	ITF Gurugram, India	W35	Hard	Jacqueline Cabaj Awad	Zhibek Kulambayeva Ankita Raina	4–6, 2–6
Loss	20–13	Mar 2024	ITF Nagpur, India	W35	Clay	Ku Yeon-woo	Irina Bara Dalila Jakupović	7–6(8), 6–7(5), [7–10]
Loss	20–14	Apr 2024	Split Open, Croatia	W75	Clay	Veronika Erjavec	Valentini Grammatikopoulou Prarthana Thombare	4–6, 1–6
Win	21–14	May 2024	Florida's Sports Coast Open, US	W75	Clay	Christina Rosca	Anna Rogers Alana Smith	6–4, 6–4
Loss	21–15	Sep 2024	ITF Saint-Palais-sur-Mer, France	W50	Clay	Sapfo Sakellaridi	Sarah Iliev Emma Léné	6–7(5), 2–6
Win	22–15	Oct 2024	ITF Quinta do Lago, Portugal	W50	Hard	Matilde Jorge	Magali Kempen Lara Salden	2–6, 6–4, [14–12]
Win	23–15	Oct 2024	ITF Toronto, Canada	W75	Hard (i)	Jamie Loeb	Julie Belgraver Jasmijn Gimbrère	6–2, 6–1

Edition	Stage	Date	Location	Against	Surface	Opponent	W/L	Score
2012	Z3 R/R	Apr 2012	Cairo (EGY)	Tunisia	Clay	Nour Abbès	L	6–2, 2–6, 6–7(7)
2013	Z2 R/R	Apr 2013	Ulcinj (MNE)	South Africa	Clay	Lynn Kiro	W	6–3, 6–1
				Greece		Despina Papamichail	L	1–6, 1–6
				Montenegro		Ana Veselinović	L	1–6, 6–1, 4–6
	Z2 P/O			Tunisia		Nour Abbès	L	3–6, 4–6

Edition	Stage	Date	Location	Against	Surface	Partner	Opponents	W/L	Score
2012	Z3 R/R	Apr 2012	Cairo (EGY)	Namibia	Clay	Lina Stančiūtė	Lesedi Sheya Jacobs Carita Moolman	W	6–2, 6–0
				Moldova		Akvilė Paražinskaitė	Melisa Martinov Alina Soltanici	W	6–0, 6–2
				Egypt		Akvilė Paražinskaitė	Magy Aziz Mora Eshak	W	6–3, 6–1
				Cyprus		Akvilė Paražinskaitė	Joanna Nena Savva Andria Tsaggaridou	W	5–7, 6–2, 6–1
				Tunisia		Akvilė Paražinskaitė	Nour Abbès Ons Jabeur	W	2–3 ret.
	Z3 P/O			Morocco		Lina Stančiūtė	Fatima El Allami Bahia Mouhtassine	W	6–4, 7–5
2013	Z2 R/R	Apr 2013	Ulcinj (MNE)	Greece	Clay	Lina Stančiūtė	Despina Papamichail Despoina Vogasari	W	4–6, 6–0, 6–2
2014	Z2 R/R	Apr 2014	Šiauliai (LTU)	Finland	Hard (i)	Lina Stančiūtė	Emma Laine Piia Suomalainen	L	6–7(4), 3–6
				Liechtenstein		Lina Stančiūtė	Kathinka von Deichmann Stephanie Vogt	L	1–6, 4–6
				Montenegro		Agnė Čepelytė	Tamara Bojanić Nikoleta Bulatović	W	6–0, 6–2
	Z2 P/O			Egypt		Lina Stančiūtė	Ola Abou Zekry Mayar Sherif	L	5–7, 6–7(4)

• Justina Mikulskytė at the Women's Tennis Association
• Justina Mikulskytė at the International Tennis Federation
• Justina Mikulskytė at the Billie Jean King Cup (archived)