The 1931 World Table Tennis Championships men's singles was the fifth edition of the men's singles championship.^[1][2]

Miklós Szabados met compatriot Viktor Barna in the final of this event. Szabados won the final three sets to nil.^[3]

^[2]

	Round of 16									Quarterfinals									Semifinals									Final
		Miklós Szabados	21	21	14	21
		Charles Bull	13	15	21	19					Miklós Szabados	21	21	21
		Stanislav Kolář	13	14	16						Sándor Glancz	8	19	11
		Sándor Glancz	21	21	21															Miklós Szabados	19	21	21	21
		Stanley Proffitt	17	10	21	21	21													Ferenc Kovács	21	16	14	13
		Rudolf Schwager	21	21	16	15	19				Stanley Proffitt	21	11	15	13
		Jindřich Lauterbach	15	18	21						Ferenc Kovács	16	21	21	21
		Ferenc Kovács	21	21	23																								Miklós Szabados	21	24	21
		Nikita Madjaroglou	18	21	15	21	21																						Viktor Barna	13	22	14
		István Boros	21	15	21	19	14				Nikita Madjaroglou	8	21	21	21
		György Szegedi	21	21	16	21	16				Lajos Dávid	21	14	10	13
		Lajos Dávid	18	10	21	23	21													Nikita Madjaroglou	21	21	8	16	13
		Arnold Oschin	21	21	21															Viktor Barna	10	16	21	21	21
		Sugar	16	16	17						Arnold Oschin	13	17	20
		Manfred Feher	20	7	21						Viktor Barna	21	21	22
		Viktor Barna	22	21	23