The Boys Singles tournament of the 2013 BWF World Junior Championships was held from October 29 until November 3. Last year champion, Kento Momota couldn't defend his title due to the age eligibility.

South Korean Heo Kwang-hee won the gold medal after beating Wang Tzu-wei from Chinese Taipei 21–11, 21–12 in the final. It was first boys single gold medal for South Korea after 7 years.

	Quarterfinals							Semifinals							Final
	9/16	Pannawit Thongnuam	10	8
	5/8	Ihsan Maulana Mustofa	21	21
								5/8	Ihsan Maulana Mustofa	18	21	16
								5/8	Heo Kwang-hee	21	13	21
	3/4	Fabian Roth	16	13
	5/8	Heo Kwang-hee	21	21
															5/8	Heo Kwang-hee	21	21
															9/16	Wang Tzu-wei	11	12
	9/16	Soong Joo Ven	21	13	10
	9/16	Wang Tzu-wei	11	21	21
								9/16	Wang Tzu-wei	21	21
									Zhao Junpeng	12	16
		Zhao Junpeng	22	21
		Jonatan Christie	20	18

	First round							Second round							Third round							Fourth round
								1	Soo TZ	21	21
									L Garrido	11	12
															1	Soo TZ	12	15
		M Narongrit	21	21												Yang S-j	21	21
		B von Bodenstein	7	12					M Narongrit	17	10
		E Penalver	13	19					Yang S-j	21	21
		Yang S-j	21	21																			Yang S-j	21	9	17
																						9/16	P Thongnuam	18	21	21
								9/16	P Thongnuam	21	21
									Tai KH	9	11
															9/16	P Thongnuam	21	21
		M Sorensen	21	21												M Sorensen	13	13
		A Shekhtman	15	9					M Sorensen	14	21	21
		P Sanmartin	21	18	17				D Nikolov	21	10	11
		D Nikolov	10	21	21

	First round							Second round							Third round							Fourth round
								5/8	I Mustofa	21	21
									P Leoke	3	4
															5/8	I Mustofa	21	21
		M Rakhimov	9	11												B Lin	14	12
		B Goonathileka	21	21					B Goonathileka	20	19
		B Lin	21	21					B Lin	22	21
		D Ojaaar	13	19																		5/8	I Mustofa	21	21
																							K Tsuneyama	19	18
								9/16	J Teeuwen	21	13	8
		N Waller	17	14					A George	17	21	21
		A George	21	21												A George	17	10
		D Riabov	21	21												K Tsuneyama	21	21
		A Hall	18	10					D Riabov	13	12
		K Tsuneyama	21	21					K Tsuneyama	21	21
		B Lau	6	8

	First round							Second round							Third round							Fourth round
								3/4	F Roth	21	21
									Pham CC	18	16
															3/4	F Roth	21	21
		A Dolotov	6	17												B Pangisthu	16	12
		B Pangisthu	21	21					B Pangisthu	21	21
		Chang TC	21	21	19				Cheam JW	17	15
		Cheam JW	19	23	21																	3/4	F Roth	21	21
																						9/16	Shi YQ	13	16
								9/16	Shi YQ	21	15	21
		P Pantig	11	10					Lin GP	11	21	10
		Lin GP	21	21											9/16	Shi YQ	21	15	21
		R Pedrosa	21	21												Lu C-h	14	21	19
		R Castellanos	16	15					R Pedrosa	12	6
		Lu C-h	21	21					Lu C-h	21	21
		I Heino	13	15

	First round							Second round							Third round							Fourth round
								5/8	Heo K-h	21	21
									J Janacek	3	7
															5/8	Heo K-h	21	21
		E Sesalan	16	20												V Shishkov	13	6
		T Citron	21	22					T Citron	14	10
		V Shishkov	22	21					V Shishkov	21	21
		J Louda	20	10																		5/8	Heo K-h	21	21
																							Y Onodera	10	11
								9/16	H Dani	25	14	14
		C Handunkuttihettige	5	12					Y Onodera	23	21	21
		Y Onodera	21	21												Y Onodera	21	21
		B Ong	17	21	16											Lee J-s	15	9
		Lee J-s	21	14	21				Lee J-s	21	21
		G Hakobyan	12	15					Low PS	12	8
		Low PS	21	21

	First round							Second round							Third round							Fourth round
		A Bakhshullaev	10	12
		J Neil	21	21					J Neil	22	10	14
		M Weisskirchen	21	21					M Weisskirchen	20	21	21
		A Joe	13	17												M Weisskirchen	10	11
		F Burestedt	21	21											9/16	Soong JV	21	21
		S Zorlu	12	15					F Burestedt	24	16	17
								9/16	Soong JV	22	21	21
																						9/16	Soong JV	21	21
		A Khor	24	11	20																	5/8	M Caljouw	18	17
		D Yao	22	21	22				D Yao	9	21
		Wan WC	10	8					V Svendsen	21	23
		V Svendsen	21	21												V Svendsen	16	21
															5/8	M Caljouw	21	23
									S Molodov	17	17
								5/8	M Caljouw	21	21

	First round							Second round							Third round							Fourth round
		S Garev	18	11
		J Eipe	21	21					J Eipe	13	21	16
		K Wangcharoen	21	21					K Wangcharoen	21	15	21
		A Lahtinen	12	14												K Wangcharoen	15	13
		R Ng	12	9											9/16	Wang T-w	21	21
		Y Igarashi	21	21					Y Igarashi	12	12
								9/16	Wang T-w	21	21
																						9/16	Wang T-w	15	21	21
		T Perekisi	1	6																		3/4	Jeon H-j	21	18	15
		Choi S-k	21	21					Choi S-k	21	21
		H Azimov	17	7					V Riera	10	4
		V Riera	21	21												Choi S-k	13	16
															3/4	Jeon H-j	21	21
									Chen C-c	10	15
								3/4	Jeon H-j	21	21

	First round							Second round							Third round							Fourth round
		Y de Oliveira	16	12
		Lim CW	21	21					Lim CW	21	21
		Lee CY	21	14	18				F Hadmadi	19	18
		F Hadmadi	15	21	21											Lim CW	21	21
		V Nieminen	21	21											9/16	A Joshi	12	14
		E Nazaretyan	10	7					V Nieminen	18	16
								9/16	A Joshi	21	21
																							Lim CW	11	10
		D Ng	19	16																			Zhao JP	21	21
		Pham HN	21	21					Pham HN	11	10
		D Guda	11	12					Zhao JP	21	21
		Zhao JP	21	21												Zhao JP	21	21
															5/8	A Mendrek	15	14
									W Lopez II	13	10
								5/8	A Mendrek	21	21

	First round							Second round							Third round							Fourth round
		Do TD	21	21
		L Mittelheisser	18	13					Do TD	18	16
		C Coetzer	16	16					Tang CM	21	21
		Tang CM	21	21												Tang CM	10	20
		Y Kobayashi	21	21												Y Kobayashi	21	22
		B Samayoa	9	15					Y Kobayashi	21	12	21
								9/16	L Schaenzler	14	21	19
																							Y Kobayashi	22	11
		J Christie	21	21																			J Christie	24	21
		K Halambage	7	11					J Christie	21	10	21
		Lee CW	9	8					Sun FX	11	21	18
		Sun FX	21	21												J Christie	21	21
															2	T Sitthikom	18	16
									M Jennings	6	11
								2	T Sitthikom	21	21

• Main Draw (Archived 2013-10-28)