Singles
1979 ATP Buenos Aires
Champion	Guillermo Vilas
Runner-up	José Luis Clerc
Score	6–1, 6–2, 6–1
Seeds	32

Guillermo Vilas defeated José Luis Clerc 6–1, 6–2, 6–1 to win the 1979 ATP Buenos Aires singles competition. José Luis Clerc was the defending champion.

Seeds

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.

Draw

Final

	Final
	1	Guillermo Vilas	6	6	6
	6	José Luis Clerc	1	2	1

Section 1

	First round							Second round							Quarterfinals							Semifinals
	1	G Vilas	6	6
		B Prajoux	3	4				1	G Vilas	7	7
		P Kronk	2	6					C Gattiker	5	6
		C Gattiker	6	7											1	G Vilas	6	6
		F Luna	2	4											8	T Šmíd	1	2
		C Lewis	6	6					C Lewis	1	4
	Q	Á Giménez	2	2				8	T Šmíd	6	6
	8	T Šmíd	6	6																		1	G Vilas	6	6
	4	E Dibbs	5	6	6																	4	E Dibbs	1	1
		R Cano	7	1	2			4	E Dibbs	6	6
		C Kirmayr	6	7					C Kirmayr	2	3
		R Fagel	2	5											4	E Dibbs	6	6
	Q	P Rebolledo	3	4												B Taróczy	4	4
		B Taróczy	6	6					B Taróczy	6	6
		C Owens	7	2	3			5	H Gildemeister	1	2
	5	H Gildemeister	6	6	6

Section 2

	First round							Second round							Quarterfinals							Semifinals
	6	J-L Clerc	6	6
		J Velasco, Sr.	2	4				6	J-L Clerc	6	6
		R Gehring	6	6					R Gehring	2	2
		T Koch	1	1											6	J-L Clerc	6	6
		T Moor	6	6												T Moor	4	1
	Q	A Gattiker	1	1					T Moor	6	6	8
		P McNamara	6	6					P McNamara	7	4	6
	3	V Pecci, Sr.	3	4																		6	J-L Clerc	6	3	6
	7	I Lendl	6	6																		7	I Lendl	3	6	4
	Q	R Argüello	3	2				7	I Lendl	6	7	6
		A Pierola	6	6					A Pierola	7	5	4
		R Frawley	1	3											7	I Lendl	6	6
		F Dalla Fontana	6	2	6										2	J Higueras	2	2
		A Gómez	3	6	8				A Gómez	3	3
		C Motta	1	3				2	J Higueras	6	6
	2	J Higueras	6	6

External links

• Main draw