The 1979 World Table Tennis Championships mixed doubles was the 35th edition of the mixed doubles championship.^{[1] [2]}

Liang Geliang and Ge Xin'ai defeated Li Zhenshi and Yan Guili in the final by three sets to nil.^[3]

	Round of 16									Quarterfinals									Semifinals									Final
		Jacques Secrétin Claude Bergeret	3
		Zoran Kosanović Branka Batinić	0								Secrétin Bergeret	3
		Huang Liang Tong Ling	1								Takashima Kawahigashi	2
		Norio Takashima Kayoko Kawahigashi	3																	Secrétin Bergeret	14	11	10
		István Jónyer Gabriella Szabó	3																	Liang Geliang Ge Xin'ai	21	21	21
		Jindřich Panský Marie Hrachová	1								Jónyer Szabó	9	8	17
		Liang Geliang Ge Xin'ai	3								Liang Geliang Ge Xin'ai	21	21	21
		Bert Van der Helm Bettine Vriesekoop	0																										Liang Geliang Ge Xin'ai	21	21	21
		Li Zhenshi Yan Guili	3																										Li Zhenshi Yan Guili	16	16	18
		John Hilton Jill Hammersley	1								Liz Zhenshi Yan Guili	13	21	21	21
		Cho Yong Ho Pak Yong-ok	3								Cho Yong Ho Pak Yong-ok	21	14	15	16
		Milan Orlowski Ilona Uhlíková	0																	Li Zhenshi Yan Guili	21	21	21
		Wang Huiyuan Zhang Deying	3																	Wang Huiyuan Zhang Deying	7	12	13
		Antun Stipančić Erzsebet Palatinus	0								Wang Huiyuan Zhang Deying	3
		Guo Yuehua Zhang Li	3								Guo Yuehua Zhang Li	1
		Patrick Renverse Nadine Daviaud	0

• List of World Table Tennis Championships medalists