The Copa Libertadores 1984 was the 25th edition of the Copa Libertadores, CONMEBOL's annual international club tournament. Independiente won the competition for their 7th Copa Libertadores title.

Country	Team	Qualification method
CONMEBOL (1 berth)	Gremio	1983 Copa Libertadores champion
Argentina (2 berths)	Estudiantes	1983 Nacional champion
	Independiente	1983 Metropolitano champion
Bolivia (2 berths)	Bolívar	1983 Primera División champion
	Blooming	1983 Primera División runner-up
Brazil (2 berths)	Flamengo	1983 Campeonato Brasileiro Série A champion
	Santos	1983 Campeonato Brasileiro Série A runner-up
Chile (2 berths)	Universidad Católica	1983 Copa Polla Gol champion
	O'Higgins	1983 Copa Polla Gol runner-up
Colombia (2 berths)	América de Cali	1983 Campeonato Profesional champion
	Junior	1983 Campeonato Profesional runner-up
Ecuador (2 berths)	El Nacional	1983 Campeonato Ecuatoriano champion
	9 de Octubre	1983 Campeonato Ecuatoriano runner-up
Paraguay (2 berths)	Olimpia	1983 Primera División champion
	Sportivo Luqueño	1983 Primera División runner-up
Peru (2 berths)	Sporting Cristal	1983 Primera División champion
	Melgar	1983 Primera División runner-up
Uruguay (2 berths)	Danubio	1983 Liguilla Pre-Libertadores winner
	Nacional	1983 Liguilla Pre-Libertadores runner-up
Venezuela (2 berths)	Universidad de Los Andes	1983 Primera División champion
	Portuguesa	1983 Primera División runner-up

The champions and runners-up of each football association were drawn into the same group along with another football association's participating teams. Three clubs from Brazil competed as Gremio was champion of the 1983 Copa Libertadores. They entered the tournament in the Semifinals.

Pos	Team	Pld	W	D	L	GF	GA	GD	Pts	Qualification		IND	OLI	SLU	EST
1	Independiente	6	4	1	1	11	5	+6	9	Semifinals		—	3–2	2–0	4–1
2	Olimpia	6	4	1	1	8	5	+3	9			1–0	—	0–0	2–1
3	Sportivo Luqueño	6	0	3	3	2	6	−4	3			0–1	1–2	—	0–0
4	Estudiantes	6	0	3	3	4	9	−5	3			1–1	0–1	1–1	—

Pos	Team	Pld	W	D	L	GF	GA	GD	Pts	Qualification		UC	BLO	BOL	OHI
1	Universidad Católica	6	4	1	1	11	5	+6	9	Semifinals		—	0–0	3–1	2–0
2	Blooming	6	3	2	1	10	6	+4	8			1–2	—	2–1	3–0
3	Bolívar	6	2	2	2	10	8	+2	6			3–2	0–0	—	5–1
4	O'Higgins	6	0	1	5	4	16	−12	1			0–2	3–4	0–0	—

Pos	Team	Pld	W	D	L	GF	GA	GD	Pts	Qualification		FLA	AME	JUN	SAN
1	Flamengo	6	5	1	0	19	6	+13	11	Semifinals		—	4–2	3–1	4–1
2	América de Cali	6	3	1	2	8	9	−1	7			1–1	—	2–0	1–0
3	Junior	6	2	0	4	9	12	−3	4			1–2	4–1	—	0–3
4	Santos	6	1	0	5	5	14	−9	2			0–5	0–1	1–3	—

Pos	Team	Pld	W	D	L	GF	GA	GD	Pts	Qualification		NAC	ENA	DAN	9OC
1	Nacional	6	4	1	1	13	5	+8	9	Semifinals		—	1–1	1–0	6–0
2	El Nacional	6	3	2	1	12	6	+6	8			3–1	—	3–0	3–1
3	Danubio	6	2	1	3	8	8	0	5			0–1	1–0	—	5–1
4	9 de Octubre	6	0	2	4	7	21	−14	2			1–3	2–2	2–2	—

Pos	Team	Pld	W	D	L	GF	GA	GD	Pts	Qualification		ULA	SCR	POR	MEL
1	Universidad de Los Andes	6	4	0	2	6	4	+2	8	Semifinals		—	0–1	2–0	1–0
2	Sporting Cristal	6	4	0	2	8	6	+2	8			2–0	—	2–1	3–2
3	Portuguesa	6	3	0	3	9	7	+2	6			1–2	1–0	—	4–0
4	Melgar	6	1	0	5	5	11	−6	2			0–1	2–0	1–2	—

Team 1	Score	Team 2
Universidad de Los Andes	2–1	Sporting Cristal

Pos	Team	Pld	W	D	L	GF	GA	GD	Pts	Qualification		IND	NAC	UC
1	Independiente	4	2	2	0	4	2	+2	6	Finals		—	1–0	2–1
2	Nacional	3	1	1	1	3	2	+1	3			1–1	—	2–0
3	Universidad Católica	3	0	1	2	1	4	−3	1			0–0	—	—

Pos	Team	Pld	W	D	L	GF	GA	GD	Pts	Qualification		GRE	FLA	ULA
1	Gremio	4	3	0	1	14	5	+9	6	Finals		—	5–1	6–1
2	Flamengo	4	3	0	1	9	7	+2	6			3–1	—	2–1
3	Universidad de Los Andes	4	0	0	4	2	13	−11	0			0–2	0–3	—

• Gremio qualified due to better goal difference in group.

Team 1	Score	Team 2
Gremio	0–0	Flamengo

Team 1	Agg.Tooltip Aggregate score	Team 2	1st leg	2nd leg
Grêmio	0–1	Independiente	0–1	0–0

• Libertadores 1984 at RSSSF.com