The 1984 Yonex All England Open Championships was the 74th edition held in 1984, at Wembley Arena, London.

Final results

Category	Winners	Runners-up	Score
Men's singles	Morten Frost	Liem Swie King	9–15, 15–10, 15–10
Women's singles	Li Lingwei	Han Aiping	11–5, 11–8
Men's doubles	Rudy Heryanto & Hariamanto Kartono	Mike Tredgett & Martin Dew	15–11, 15–6
Women's doubles	Lin Ying & Wu Dixi	Kim Yun-ja & Yoo Sang-hee	15–8, 8–15, 17–14
Mixed doubles	Martin Dew & Gillian Gilks	Nigel Tier & Gillian Gowers	15–8, 15–3

Men's singles

Seeds

Section 1

	Round of 32							Round of 16							Quarter-finals							Semi-finals
		Morten Frost	15	15
		Andy Goode	1	8					Frost	15	15
		Chen Changjie	15	5	15				Changjie	7	4
		Razif Sidek	5	15	8											Frost	14	15	15
		Hastomo Arbi	15	15												Arbi	17	5	8
		Park Joo Bong	9	12					Arbi	15	9	15
		Kevin Jolly	15	15					Jolly	7	15	2
		Kim Brodersen	9	10																			Frost	w/o
		Han Jian	15	18																			Han Jian	scr
		Sung Han-kook	9	13					Han Jian	7	15	17
		Jens Peter Nierhoff	15	15					Nierhoff	15	5	16
		Ulf Johansson	4	11												Han Jian	17	15
		Prakash Padukone	15	15												Padukone	14	10
		Torben Carlsen	4	7					Padukone	15	15
		Dipak Tailor	5	15	15				Tailor	1	7
		Hiroshi Nishiyama	15	10	7

Section 2

	Round of 32							Round of 16							Quarter-finals							Semi-finals
		Liem Swie King	15	15
		Lee Deuk-choon	3	0					Swie King	15	15
		Misbun Sidek	15	15					Sidek	3	7
		Stefan Karlsson	11	7												Swie King	15	15
		Yang Yang	11	15	15											Yang Yang	10	8
		Stephen Butler	15	11	5				Yang Yang	15	15
		Eddy Hartono	15	15					Hartono	10	7
		Ib Frederiksen	5	9																			Swie King	15	15
		Michael Kjeldsen	15	15																			Kjeldsen	5	1
		Syed Modi	8	2					Kjeldsen	1	15	15
		Icuk Sugiarto	15	15					Sugiarto	15	8	12
		Glen Milton	5	5												Kjeldsen	15	17
		Nick Yates	15	5	15											Yates	4	15
		Luan Jin	9	15	11				Yates	15	15
		Sigit Pamungkas	15	15					Pamungkas	3	2
		Shokichi Miyamori	6	2

Women's singles

Seeds

Section 1

	Round of 32							Round of 16							Quarter-finals							Semi-finals
		Li Lingwei	11	11
		Linda Cloutier	5	2					Lingwei	11	12
		Yoo Sang-hee	11	11					Yoo Sang-hee	5	9
		Wendy Massam	3	0												Lingwei	12	11
		Helen Troke	11	11												Troke	10	8
		Agnethe Juul	3	8					Troke	8	11	11
		Saori Kohmoto	7	11	11				Kohmoto	11	1	8
		Elizabeth Latief	11	2	4																		Lingwei	11	11
		Qian Ping	7	11	11																		Ping	3	8
		Gillian Clark	11	3	7				Ping	5	11	11
		Christine Magnusson	11	11					Magnussen	11	5	2
		Raith Kumala-Dewi	5	4												Ping	11	11
		Kim Yun-ja	11	11												Kim Yun-ja	8	3
		Pamela Hamilton	0	1					Kim Yun-ja	11	11	11
		Karen Beckman	11	11					Beckman	12	3	0
		Sue Louis	4	2

Section 2

	Round of 32							Round of 16							Quarter-finals							Semi-finals
		Han Aiping	11	11
		Merry Herliem	5	1					Aiping	11	11
		Sally Podger	11	11					Podger	4	4
		Fumiko Tohkairin	3	3												Aiping	11	11
		Kirsten Larsen	11	10	11											Larsen	7	4
		Kim Yoon Sook	8	12	2				Larsen	11	11
		Gillian Gowers	11	12					Gowers	8	8
		Rosiana Tendean	2	10																			Aiping	11	11
		Zhang Ailing	11	11																			Ailing	6	2
		Kim Bok Sun	6	3					Ailing	11	11
		Charlotte Hattens	12	11					Hattens	1	2
		Alison Fisher	11	8												Ailing	11	11
		Sumiko Kitada	11	11												Kitada	8	3
		Dorthe Lynge	4	4					Kitada	11	11
		Ivana Lie	9	11	11				Ivana	4	2
		Jane Webster	12	7	4