Maxim Mrva and Rei Sakamoto won the boys' doubles title at the 2024 US Open, defeating Denis Peták and Flynn Thomas in the final, 7–5, 7–6^(7–1).^[1]

Max Dahlin and Oliver Ojakäär were the reigning champions,^[2] but were no longer eligible to participate in junior events.

	Semifinals							Final
	1	Maxim Mrva Rei Sakamoto	7	6
	3	Henry Bernet Nicolai Budkov Kjær	5	3
								1	Maxim Mrva Rei Sakamoto	7	77
									Denis Peták Flynn Thomas	5	61
	4	Thomas Faurel Luca Preda	3	5
		Denis Peták Flynn Thomas	6	7

	First round							Second round							Quarterfinals							Semifinals
	1	Maxim Mrva Rei Sakamoto	6	6
		Oskari Paldanius Andreas Timini	2	2				1	M Mrva R Sakamoto	7	6
	WC	Stiles Brockett Dominick Mosejczuk	4	7	[9]				R Jódar A Santamarta Roig	5	3
		Rafael Jódar Andrés Santamarta Roig	6	5	[11]										1	M Mrva R Sakamoto	5	6	[13]
	WC	Matisse Farzam Nikita Samuel Filin	4	7	[10]										WC	M Farzam NS Filin	7	4	[11]
		Izan Almazán Valiente Gustavo Ribeiro de Almeida	6	5	[1]			WC	M Farzam NS Filin	7	6
		Ivan Iutkin William Rejchtman Vinciguerra	2	4				5	P Brunclík T Papamalamis	5	2
	5	Petr Brunclík Théo Papamalamis	6	6																		1	M Mrva R Sakamoto	7	6
	3	Henry Bernet Nicolai Budkov Kjær	65	6	[10]																	3	H Bernet N Budkov Kjær	5	3
		Keaton Hance Jack Kennedy	77	1	[7]			3	H Bernet N Budkov Kjær	6	6
	Alt	Enzo Kohlmann de Freitas Luís Guto Miguel	2	63					A De Marchi J Vasamì	2	2
		Andrea De Marchi Jacopo Vasamì	6	77											3	H Bernet N Budkov Kjær	4	6	[16]
		Daniil Sarksian Zhang Tianhui	6	67	[10]											N Honda N Trouvé	6	3	[14]
		Noah Johnston Benjamin Willwerth	2	79	[7]				D Sarksian T Zhang	6	65	[5]
		Naoya Honda Nathan Trouvé	7	4	[10]				N Honda N Trouvé	4	77	[10]
	6	Kim Jang-jun Marko Maksimović	5	6	[4]

	First round							Second round							Quarterfinals							Semifinals
	7	Alexander Razeghi Max Schönhaus	6	6
		Miguel Tobón Máximo Zeitune	3	2				7	A Razeghi M Schönhaus	6	6
		Ian Mayew Kase Schinnerer	4	6	[10]				I Mayew K Schinnerer	3	2
		Oliver Bonding Charlie Robertson	6	4	[8]										7	A Razeghi M Schönhaus	6	5	[5]
		Alessandro Battiston Bryan Hernández Cortés	6	3	[10]										4	T Faurel L Preda	1	7	[10]
		Jan Klimas Mika Petkovic	3	6	[5]				A Battiston B Hernández Cortés	6	4	[6]
	WC	Krish Arora Matthew Forbes	5	4				4	T Faurel L Preda	3	6	[10]
	4	Thomas Faurel Luca Preda	7	6																		4	T Faurel L Preda	3	5
	8	Maxwell Exsted Cooper Woestendick	64	1																			D Peták F Thomas	6	7
		Denis Peták Flynn Thomas	77	6					D Peták F Thomas	5	7	[12]
		Timofei Derepasko Amir Omarkhanov	6	3	[10]				T Derepasko A Omarkhanov	7	5	[10]
		Atakan Karahan Roh Ho-young	3	6	[8]											D Peták F Thomas	6	6
	WC	Yannik Álvarez Ryan Cozad	4	1												V Frydrych M Röttgering	4	4
		Viktor Frydrych Mees Röttgering	6	6					V Frydrych M Röttgering	77	4	[10]
		Lorenzo Angelini Lorenzo Beraldo	77	77					L Angelini L Beraldo	63	6	[6]
	2	Hayden Jones Jagger Leach	65	62

• Main draw