Elizaveta Yuriyivna Ianchuk (Ukrainian: Єлізавета Юріївна Янчук; born 8 March 1993) is a Ukrainian former tennis player. Her younger sister Olga Ianchuk also was a professional tennis player.

Ianchuk has a career-high singles ranking of world No. 258, achieved on 4 April 2016. She also has a career-high doubles ranking of 279 by the WTA achieved on 22 August 2016. Ianchuk has won four singles titles and six doubles titles on tournaments of the ITF Circuit.

Ianchuk made her WTA Tour main-draw debut at the 2015 Baku Cup in the doubles event, partnering Olga Fridman.

Result	No.	Date	Tournament	Surface	Opponent	Score
Win	1.	26 June 2011	ITF İzmir, Turkey	Clay	Aleksandrina Naydenova	7–5, 6–1
Loss	1.	20 August 2011	ITF Ratingen, Germany	Clay	Scarlett Werner	0–6, 5–7
Loss	2.	1 October 2012	ITF Antalya, Turkey	Clay	Kateřina Vaňková	6–4, 4–6, 0–6
Loss	3.	16 March 2014	ITF Orlando, United States	Clay	Katerina Stewart	1–6, 1–6
Win	2.	29 June 2014	ITF Prokuplje, Serbia	Clay	Alexandra Nancarrow	1–6, 7–5, 6–3
Win	3.	21 July 2014	ITF Palić, Serbia	Clay	Ágnes Bukta	6–7(11), 7–5, 6–4
Loss	4.	4 August 2014	ITF Zaječar, Serbia	Clay	Natalija Kostić	2–6, 1–6
Loss	5.	7 September 2014	ITF Galați, Romania	Clay	Patricia Maria Țig	3–6, 3–6
Win	4.	22 September 2014	ITF Madrid, Spain	Hard	Chloé Paquet	6–2, 6–3
Loss	6.	29 January 2017	ITF Wesley Chapel, U.S.	Clay	Anhelina Kalinina	4–6, 4–6

Result	No.	Date	Tournament	Surface	Partner	Opponents	Score
Win	1.	8 August 2011	Reinert Open, Germany	Clay	Julia Mayr	Cecilia Costa Melgar Daniela Seguel	6–4, 6–3
Win	2.	15 AugUST 2011	ITF Ratingen, Germany	Clay	Karolina Wlodarczak	Katharina Hering Dinah Pfizenmaier	3–6, 6–1, 6–4
Loss	1.	3 October 2011	ITF Yerevan, Armenia	Clay	Olga Ianchuk	Tatia Mikadze Sofia Shapatava	1–6, 4–6
Loss	2.	30 January 2012	Rancho Santa Fe Open, United States	Hard	Irina Buryachok	Maria Sanchez Yasmin Schnack	6–7(7), 6–4 [8–10]
Win	3.	1 October 2012	ITF Antalya, Turkey	Clay	Sviatlana Pirazhenka	Anaïs Laurendon Kateřina Vaňková	7–6(0), 2–6, [10–7]
Loss	3.	4 July 2014	ITF Prokuplje, Serbia	Clay	Olga Fridman	Lina Gjorcheska Alexandra Nancarrow	4–6, 6–7(5)
Win	4.	25 July 2014	Palic Open, Serbia	Clay	Lina Gjorcheska	Irina Bara Camelia Hristea	6–4, 6–1
Win	5.	10 August 2014	ITF Zaječar, Serbia	Clay	Natalija Kostić	Alexandra Nancarrow Barbora Štefková	6–3, 7–5
Win	6.	14 September 2014	ITF Lleida, Spain	Clay	Alexandra Nancarrow	Yvonne Cavallé Reimers Lucía Cervera Vázquez	6–1, 6–1
Loss	4.	9 March 2015	ITF Amiens, France	Clay	Olga Ianchuk	Ilka Csöregi Eleni Daniilidou	1–6, 4–6
Loss	5.	16 March 2015	ITF Gonesse, France	Clay	Olga Ianchuk	Ágnes Bukta Oana Georgeta Simion	4–6, 6–3, [6–10]
Loss	6.	7 September 2015	Batumi Ladies Open, Georgia	Hard	Angelina Gabueva	Natela Dzalamidze Alena Tarasova	7–5, 1–6, [7–10]
Loss	7.	9 November 2015	ITF Équeurdreville, France	Hard (i)	Sherazad Reix	Alexandra Cadanțu Lesley Kerkhove	3–6, 4–6
Loss	8.	19 February 2016	Morelos Open, Mexico	Hard	Kateřina Kramperová	Aleksandrina Naydenova Fanny Stollár	3–6, 2–6

• Elizaveta Ianchuk at the Women's Tennis Association
• Elizaveta Ianchuk at the International Tennis Federation