The 2003 PSA Men's World Open Squash Championship is the men's edition of the 2003 World Open, which serves as the individual world championship for squash players. The event took place in Lahore in Pakistan from 14 December to 21 December 2003. Amr Shabana won his first World Open title, defeating Thierry Lincou in the final.

	Quarter finals									Semi finals									Final
	30	Davide Bianchetti	16	9	5
	7	Karim Darwish	17	15	15
										7	Karim Darwish	11	15	8	14
										9	Amr Shabana	15	11	15	15
	9	Amr Shabana	14	15	15	12	17
	5	Anthony Ricketts	15	14	12	15	16
																			9	Amr Shabana	15	9	15	15
																			4	Thierry Lincou	14	15	11	7
	19	Nick Matthew	15	7	3	11
	4	Thierry Lincou	14	15	15	15
										4	Thierry Lincou	15	15	15
										11	Joseph Kneipp	12	10	7
	8	Lee Beachill	15	10	8	15	10
	11	Joseph Kneipp	10	15	15	11	15

	First round									Second round									Third round									Quarter finals
	1	Peter Nicol	15	16	15	15
		Hisham Ashour	14	17	7	6				1	Peter Nicol	15	15	7	4	10
	30	Davide Bianchetti	15	15	15					30	Davide Bianchetti	11	12	15	15	15
		Gavin Jones	8	11	13														30	Davide Bianchetti	15	15	5	5	15
	10	Grégory Gaultier	15	15	15														10	Grégory Gaultier	12	14	15	15	7
		Jonathan Kemp	11	8	4					10	Grégory Gaultier	15	5	15	10	15
	26	Rodney Durbach	15	15	15					26	Rodney Durbach	10	15	11	15	11
	Q	Raj Nanda	13	2	7																							30	Davide Bianchetti	16	9	5
	7	Karim Darwish	15	15	15																							7	Karim Darwish	17	15	15
	Q	Safeerullah Khan	13	11	9					7	Karim Darwish	15	15	8	7	15
	29	James Willstrop	15	15	15					29	James Willstrop	11	13	15	15	9
		Lee Drew	8	8	8														7	Karim Darwish	15	15	5	7	15
	13	Mansoor Zaman	15	15	15														21	Olli Tuominen	8	8	15	15	10
		Lars Harms	11	5	9					13	Mansoor Zaman	15	10	8	15
	21	Olli Tuominen	15	15	15					21	Olli Tuominen	11	15	15	17
		Cameron White	11	6	6

	First round									Second round									Third round									Quarter finals
	3	David Palmer	15	15	15
		Mohd Essam Hafiz	12	5	12					3	David Palmer	15	15	15
	28	Mohd Azlan Iskandar	15	15	15					28	Mohd Azlan Iskandar	8	9	11
		Glenn Keenan	3	6	8														3	David Palmer	6	9	15	7
	9	Amr Shabana	15	15	15														9	Amr Shabana	15	15	11	15
		Bradley Ball	14	11	16					9	Amr Shabana	15	8	15	14	15
	22	Adrian Grant	16	13	15	5					Peter Genever	10	15	5	17	2
		Peter Genever	17	15	4	15																						9	Amr Shabana	14	15	15	12	17
	5	Anthony Ricketts	15	15	15																							5	Anthony Ricketts	15	14	12	15	16
		Cameron Pilley	8	5	11					5	Anthony Ricketts	15	15	15
	31	Wael El Hindi	15	15	15					31	Wael El Hindi	5	6	10
		Alister Walker	9	12	12														5	Anthony Ricketts	15	15	11	15
	15	Simon Parke	15	15	15														20	Mohammed Abbas	11	13	15	8
		Ben Garner	13	16	14					15	Simon Parke	15	7	7	5
	20	Mohammed Abbas	15	15	9	15				20	Mohammed Abbas	5	15	15	15
		Viktor Berg	7	11	15	13

	First round									Second round									Third round									Quarter finals
		Dan Jenson	10	6	12
	25	Renan Lavigne	15	15	15					25	Renan Lavigne	15	15	13	15
		Mike Corren	7	10	15	12				16	Mark Chaloner	16	9	15	10
	16	Mark Chaloner	15	15	12	15													25	Renan Lavigne	11	8	13
	Q	Saeed Hassan	11	10	11														19	Nick Matthew	15	15	15
	19	Nick Matthew	15	15	15					19	Nick Matthew	15	10	3	15	15
		Laurens Jan Anjema	9	7	4					6	Ong Beng Hee	13	15	15	12	5
	6	Ong Beng Hee	15	15	15																							19	Nick Matthew	15	7	3	11
	Q	Arshad Iqbal Burki	15	3	10	17	15																					4	Thierry Lincou	14	15	15	15
	24	Shahier Razik	13	15	15	14	8			Q	Arshad Iqbal Burki	15	15	6	13	9
		Tommy Berden	17	15	16	15					Tommy Berden	12	10	15	15	15
	12	Martin Heath	16	9	17	8														Tommy Berden	16	13	12
	Q	Shamsul Islam Khan	6	11	17	8													4	Thierry Lincou	17	15	15
	18	Omar El Borolossy	15	15	16	15				18	Omar El Borolossy	9	12	7
		Shahid Zaman	9	4	8					4	Thierry Lincou	15	15	15
	4	Thierry Lincou	15	15	15

	First round									Second round									Third round									Quarter finals
		John Williams	13	12	11
	23	Nick Taylor	15	15	15					23	Nick Taylor	15	15	15
	Q	Peter Barker	15	7	13	11				14	Graham Ryding	12	6	9
	14	Graham Ryding	12	15	15	15													23	Nick Taylor	7	7	6
		Borja Golán	15	15	6	15													8	Lee Beachill	15	15	15
	32	Farrukh Zaman	13	6	15	7					Borja Golán	5	7	6
	Q	Ritwik Bhattacharya	7	15	13	10				8	Lee Beachill	15	15	15
	8	Lee Beachill	15	10	15	15																						8	Lee Beachill	15	10	8	15	10
		Joey Barrington	9	12	15	11																						11	Joseph Kneipp	10	15	15	11	15
	17	Alex Gough	15	15	12	15				17	Alex Gough	7	12	15	7
		Liam Kenny	8	11	9					11	Joseph Kneipp	15	15	10	15
	11	Joseph Kneipp	15	15	15														11	Joseph Kneipp	15	15	15
	Q	John Rooney	9																2	John White	11	14	3
	27	Stefan Casteleyn	3							Q	John Rooney	13	6	12
		Jean-Michel Arcucci	11	12	13					2	John White	15	15	15
	2	John White	15	15	15

^[1]

• PSA World Open
• 2003 Women's World Open Squash Championship

• World Open 2003 Squashtalk page
• PSA World Open 2003 website^{[permanent dead link‍]}