Johannes Ingildsen (born 1 July 1997) is a Danish tennis player.

Ingildsen has a career high ATP singles ranking of world No. 638 achieved on 12 September 2022. He has a career high ATP doubles ranking of No. 127 achieved on 14 October 2024.^[1]

Ingildsen represents Denmark at the Davis Cup, where he has a W/L record of 4–2.

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Win	1–0	Apr 2024	Tallahassee, USA	Challenger	Clay (green)	Simon Freund	William Blumberg Luis David Martínez	7–5, 7–6(7–4)
Loss	1–1	Apr 2024	Savannah, USA	Challenger	Clay (green)	Simon Freund	Christian Harrison Marcus Willis	3–6, 3–6
Loss	1–2	May 2024	Oeiras II, Portugal	Challenger	Clay	Simon Freund	Anirudh Chandrasekar Arjun Kadhe	5–7, 4–6
Loss	1–3	Jul 2024	Tampere, Finland	Challenger	Clay	Thomas Fancutt	Íñigo Cervantes Daniel Rincón	3–6, 4–6
Loss	1–4	Aug 2024	Grodzisk Mazowiecki, Poland	Challenger	Hard	Daniel Cukierman	Charles Broom David Stevenson	3–6, 6–7(3–7)
Loss	1–5	Sep 2024	Istanbul, Turkey	Challenger	Hard	August Holmgren	Aleksandre Bakshi Yankı Erel	6–7(4–7), 5–7
Loss	1–6	Sep 2024	Mouilleron-le-Captif, France	Challenger	Hard (i)	August Holmgren	Christian Harrison Marcelo Demoliner	3–6, 5–7

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Loss	0–1	Oct 2021	M15 Tallahassee, USA	WTT	Hard	Vasil Kirkov	6–4, 1–6, 2–6
Win	1–1	Nov 2021	M15 Santo Domingo, Dominican Republic	WTT	Hard	Jorge Panta	6–4, 6–3

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Loss	0–1	Jul 2021	M15 Vejle, Denmark	WTT	Clay	Christian Sigsgaard	Carl Emil Overbeck Benjamin Hannestad	6–7(6–8), 6–4, [8–10]
Win	1–1	Aug 2021	M15 Frederiksberg, Denmark	WTT	Clay	Christian Sigsgaard	Simon Friis Søndergaard Benjamin Hannestad	7–5, 6–3
Loss	1–2	Sep 2021	M15 Monastir, Tunisia	WTT	Hard	August Holmgren	Jeremy Beale Li Tu	4–6, 2–6
Loss	1–3	Oct 2021	M15 Naples, USA	WTT	Clay	Duarte Vale	Bruno Kuzuhara Abedallah Shelbayh	4–6, 1–6
Win	2–3	Oct 2021	M15 Vero Beach, USA	WTT	Clay	Duarte Vale	Liam Draxl Ben Shelton	6–3, 6–4
Win	3–3	Dec 2021	M15 Santo Domingo, Dominican Republic	WTT	Hard	Alfredo Perez	Enzo Wallart Alexis Musialek	7–6(7–4), 6–3
Win	4–3	Dec 2021	M15 Santo Domingo, Dominican Republic	WTT	Hard	Alfredo Perez	Marco Brugnerotto Osgar O'Hoisin	6–3, 6–3
Win	5–3	Feb 2022	M15 Villena, Spain	WTT	Hard	Pedro Araújo	Buvaysar Gadamauri Maxime Chazal	6–3, 6–3
Win	6–3	May 2022	M25 Kalmar, Sweden	WTT	Clay	Simon Freund	Timothy Carlsson Seger Isac Strömberg	6–1, 6–1
Win	7–3	Jun 2022	M25 Skopje, North Macedonia	WTT	Clay	Simon Freund	Filip Bergevi Moez Echargui	7–5, 6–3
Win	8–3	Jul 2022	M25 Poprad, Slovakia	WTT	Clay	Simon Freund	Lukáš Pokorný Miloš Karol	6–4, 6–2
Win	9–3	Aug 2022	M15 Fredriksberg, Denmark	WTT	Clay	Christian Sigsgaard	Benjamin Hannestad Carl Emil Overbeck	7–6(11–9), 6–4
Win	10–3	Aug 2022	M25 Lesa, Italy	WTT	Clay	August Holmgren	Federico Bondioli Filippo Romano	6–1, 6–4
Loss	10–4	Nov 2022	M15 Fayetteville, USA	WTT	Hard	Christian Sigsgaard	Tyler Zink George Goldhoff	6–1, 4–6, [2–10]
Win	11–4	Feb 2023	M15 Sharm El Sheikh, Egypt	WTT	Hard	Elmer Møller	Akram El Sallaly Mohamed Safwat	6–3, 6–2
Loss	11–5	Apr 2023	M25 Nottingham, United Kingdom	WTT	Hard	August Holmgren	Neil Oberleitner Marcus Willis	7–6 (7–1), 6–3
Win	12–5	Jul 2023	M15 Vejle, Denmark	WTT	Clay	Simon Freund	Carl Emil Overbeck Oskar Brostrøm Poulsen	6–2, 6–3
Win	13–5	Sep 2023	M25 Idanha-a-Nova, Portugal	WTT	Hard	Harry Wendelken	Gonçalo Falcão Tiago Pereira	7–6 (7–3), 6–2
Win	14–5	Sep 2023	M25 Sintra, Portugal	WTT	Hard	Fred Simonsson	Jaime Faria Henrique Rocha	7–6 (7–5), 3–6, [10–7]
Win	15–5	Sep 2023	M25 Falun, Sweden	WTT	Hard	Simon Freund	Harry Wendelken Anton Matusevich	7–6 (7–2), 4–6, [10–7]
Win	16–5	Oct 2023	M25 Tavira, Portugal	WTT	Hard	Simon Freund	Gonçalo Falcão João Domingues	6–4, 4–6, [10–5]
Loss	16–6	Nov 2023	M15 Limassol, Cyprus	WTT	Hard	Elmer Møller	Jurriaan Bol Brian Bozemoj	6–4, 2–6, [9–11]
Win	17–6	Jan 2024	M25 Ithaca, USA	WTT	Hard (i)	Simon Freund	Joshua Sheehy Pranav Kumar	6–4, 7–6(7–4)
Win	18–6	Jan 2024	M25 Wesley Chapel, USA	WTT	Hard	Simon Freund	Nicolás Buitrago Victor Lilov	6–4, 6–7(6–8), [10–4]
Loss	18–7	Feb 2024	M25 Faro, Portugal	WTT	Hard	Simon Freund	Tiago Pereira Alexander Donski	4–6, 6–3, [7–10]

• Johannes Ingildsen at the Association of Tennis Professionals
• Johannes Ingildsen at the International Tennis Federation
• Johannes Ingildsen at the Davis Cup
• Johannes Ingildsen at University of Florida