The 1963 World Table Tennis Championships mixed doubles was the 27th edition of the mixed doubles championship.^[1][2]

Koji Kimura and Kazuko Ito-Yamaizumi defeated Keiichi Miki and Masako Seki in the final by three sets to nil.^[3]

	Round of 16									Quarterfinals									Semifinals									Final
		Ichiro Ogimura Kimiyo Matsuzaki	24	21	23	21
		Chang Chih-lin Cheng Min-chih	26	14	21	10					Chang Chih-lin Cheng Min-chih	21	21	10	16
		János Faházi Éva Földy	21	21	21						Faházi Földy	14	23	21	21
		Janusz Kusiński Danuta Szmidt	10	18	16															Faházi Földy	21	10	19	10
		Hu Tao-pen Ti-Chiang-hua	21	21	21															Kimura Ito-Yamaizumi	9	21	21	21
		Luis Choi Emilia Tong	9	9	13						Hu Tao-pen Ti-Chiang-hua	17	21	22	24
		Koji Kimura Kazuko Ito-Yamaizumi	21	21	21						Kimura Ito-Yamaizumi	21	9	20	26
		Adalbert Rethi Maria Catrinel Folea	9	17	7																								Kimura Ito-Yamaizumi	21	21	21
		Keiichi Miki Masako Seki	21	21	21																								Miki Seki	18	14	18
		Wang Chia-sheng Wang Chien	9	12	9						Miki Seki	21	21	22
		Hans Alsér Inge Harst	21	21	13	21					Alser Harst	17	15	20
		Chou Lan-sun Hu Ke-ming	18	15	21	17														Miki Seki	21	19	21	21
		Ken Konaka Noriko Yamanaka	16	20	21	21	21													Chuang Tse-tung Chiu Chung-hui	11	21	19	14
		Yu Chang-chun Li Ho-nan	21	22	5	19	14				Konaka Yamanaka	19	12	10
		Chuang Tse-tung Chiu Chung-hui	21	21	21						Chuang Tse-tung Chiu Chung-hui	21	21	21
		Vilim Polakovic Libuše Uhrová	12	13	8

List of World Table Tennis Championships medalists