The 1991 season is the 69th season of competitive football in Ecuador.

• Champion: Barcelona (11th title)
• International cup qualifiers:
  • 1992 Copa Libertadores: Barcelona, Valdez
  • 1992 Copa CONMEBOL: El Nacional
• Relegated: Macará (after the first stage); Juvenil (after the second stage)

• Winner:
  • First Stage: Green Cross (1st title)
  • Second Stage: Aucas (2nd title)
• Promoted: Green Cross (after the first stage); Aucas (after the second stage)
• Relegated: Audaz Octubrino, Deportivo Quevedo

• Winner: 2 de Marzo (1st title)
• Promoted: 2 de Marzo, Santos

The Ecuador national team played eight matches in 1991: four at the Copa America, and four friendlies.

Ecuador played in 1991 Copa America held in Chile. For the Group Stage, they were drawn into Group B with Brazil, Uruguay, Colombia, and Bolivia. They finished 4th in the group and didn't advance to the Final Round.

Team	Pld	W	D	L	GF	GA	GD	Pts
Colombia	4	2	1	1	3	1	+2	5
Brazil	4	2	1	1	6	5	+1	5
Uruguay	4	1	3	0	4	3	+1	5
Ecuador	4	1	1	2	6	5	+1	3
Bolivia	4	0	2	2	2	7	−5	2

7 July 1991

Colombia	1 – 0	Ecuador
de Ávila 25'

Estadio Playa Ancha, Valparaíso

Attendance: 13,828

Referee: Juan Francisco Escobar (Paraguay)

9 July 1991

Uruguay	1 – 1	Ecuador
Méndez 49' (pen.)		Aguinaga 44'

Estadio Sausalito, Viña del Mar

Attendance: 18,430

Referee: Gastón Castro (Chile)

13 July 1991

Ecuador	4 – 0	Bolivia
Aguinaga 32' Avilés 42', 73' Ramírez 80' (pen.)

Estadio Sausalito, Viña del Mar

Attendance: 17,250

Referee: Gastón Castro (Chile)

15 July 1991

Brazil	3 – 1	Ecuador
Mazinho 8' Márcio Santos 54' Luis Henrique 89'		Muñoz 12'

Estadio Sausalito, Viña del Mar

Attendance: 19,000

Referee: Juan Francisco Escobar (Paraguay)

6 June 1991

Peru	0 – 1	Ecuador
		Ron 50'

Estadio Nacional, Lima

Attendance: 10,000

Referee: Fernando Chappell (Peru)

19 June 1991

Ecuador	2 – 1	Chile
Garay 7' Guerrero 70'		Vera 10' (pen.)

Estadio Modelo, Guayaquil

Attendance: 35,000

Referee: Luis Naranjo (Ecuador)

25 June 1991

Ecuador	2 – 2	Peru
Carcelén Muñoz		Hirano Rodríguez

Estadio Modelo, Guayaquil

Attendance: 10,000

30 June 1991

Chile	3 – 1	Ecuador
Rubio 17', 41' Zamorano 36'		Aguinaga 49'

Estadio Nacional, Santiago

Attendance: 25,000

Referee: Carlos Robles (Chile)

• January 27 - Juan Govea, footballer

• National leagues details on RSSSF