The 1977 World Table Tennis Championships mixed doubles was the 34th edition of the mixed doubles championship.^{[1] [2]}

Jacques Secrétin and Claude Bergeret defeated Tokio Tasaka and Sachiko Yokota in the final by three sets to nil.^[3]

	Round of 16									Quarterfinals									Semifinals									Final
		Gábor Gergely Judit Magos-Havas	21	22	14	19	21
		Lu Yuan-sheng Chu Hsiang-tun	16	20	21	21	19				Gergely Magos	21	11	21	22
		Li Chen-shih Yan Kuai-li	21	19	21	21					Li Chen-shih Yan Kuai-Li	23	21	18	24
		Bela Frank Beatrix Kisházi	18	21	16	14														Li Chen-shih Yan Kuai-li	20	18	16
		Milan Orlowski Ilona Uhlíková	21	21	21															Tasaka Yokota	22	21	21
		Ivan Stojanov Emilia Neikova	7	9	9						Orlowski Uhlikova	20	21	21	15	11
		Tokio Tasaka Sachiko Yokota	21	21	11	21					Tasaka Yokota	22	18	13	21	21
		Kuo Yao-hua Chang Li	19	12	21	13																							Tasaka Yokota	17	14	17
		Sarkis Sarchayan Elmira Antonyan	21	21	21																								Secrétin Bergeret	21	21	23
		Anatoli Strokatov Valentina Popova	14	10	11						Sarkhayan Antonian	14	19	14
		Jacques Secrétin Claude Bergeret	12	21	13	21	21				Secrétin Bergeret	21	21	21
		Huang Liang Wei Li-chieh	21	19	21	19	16													Secrétin Bergeeret	21	21	18	14	21
		Lee Sang-kuk Lee Ki-won	21	21	16	21														Lee Sang-kuk Lee Ki-won	17	15	21	21	10
		Li Kuang Tsu Siu Kit Man	6	8	21	10					Lee Sang-kuk Lee Ki-won	21	19	21	21
		Liao Fu-min Li Ming	12	19	11						Kono Edano	15	21	15	19
		Mitsuru Kono Tomie Edano	21	21	21

List of World Table Tennis Championships medalists