The 1977 South American Championships in Athletics were held in Montevideo, Uruguay, between 4 and 6 November 1977.

Event	Gold		Silver		Bronze
100 metres (wind: +1.5 m/s)	Rui da Silva  Brazil	10.3	Katsuhiko Nakaia  Brazil	10.4	Miguel Sulbarán  Venezuela	10.6
200 metres (wind: 0.0 m/s)	Rui da Silva  Brazil	21.3	Katsuhiko Nakaia  Brazil	21.7	Hipólito Brown  Venezuela	22.1
400 metres	Delmo da Silva  Brazil	47.70	Ariel Santolaya  Chile	47.71	Djalma de Oliveira  Brazil	48.24
800 metres	Agberto Guimarães  Brazil	1:52.4	Omar Amdematten  Argentina	1:52.8	Ricardo Vigo  Argentina	1:53.3
1500 metres	José González  Venezuela	3:51.7	Emilio Ulloa  Chile	3:51.7	Cosme do Nascimento  Brazil	3:51.7
5000 metres	Domingo Tibaduiza  Colombia	14:24.4	Darcy Pereira  Brazil	14:25.4	Jairo Correa  Colombia	14:26.0
10,000 metres	Domingo Tibaduiza  Colombia	29:44.2	Aloisio de Araújo  Brazil	29:57.0	Carlos Alves  Brazil	30:12.3
Marathon	Héctor Rodríguez  Colombia	2:19:56	Víctor Rodríguez  Colombia	2:24:48	Elói Schleder  Brazil	2:26:48
110 metres hurdles (wind: 0.0 m/s)	Oscar Marín  Venezuela	15.0	Jesús Villegas  Colombia	15.0	Carlos dos Santos  Brazil	15.2
400 metres hurdles	Moisés Zambrano  Venezuela	53.7	Donizete Soares  Brazil	54.1	Joelmerson de Carvalho  Brazil	54.4
3000 metres steeplechase	Jairo Correa  Colombia	9:00.5	Lucirio Garrido  Venezuela	9:01.5	Abel Córdoba  Argentina	9:13.0
4 × 100 metres relay	Brazil Antonio Carlos Nunes Nelson dos Santos Rui da Silva Katsuhiko Nakaya	41.4	Venezuela José Chacín Manuel Briceno Ely Zabala Hipolito Brown	41.7	Uruguay Servio Labruna Luis Sánchez Luis Barbosa José Gonçalves	42.1
4 × 400 metres relay	Brazil Delmo da Silva Donizete Soares Pedro Teixeira Djalma de Oliveira	3:15.1	Venezuela Héctor López Hipolito Brown Alexis Herrera José Moisés Zambrano	3:17.4	Chile Emilio Ulloa Cristián Molina Rafael Rossi Ariel Santolaya	3:23.1
20 kilometres road walk	Enrique Peña  Colombia	1:37:21 CR	Osvaldo Morejón  Bolivia	1:39:23	Rafael Vega  Colombia	1:40:14
High jump	Iraja Cecy  Brazil	2.05	Luis Arbulú  Peru	2.00	Luis Barrionuevo  Argentina	2.00
Pole vault	Renato Bortolocci  Brazil	4.40	Tito Steiner  Argentina	4.30	Fernando Hoces  Chile	4.10
Long jump	João Carlos de Oliveira  Brazil	7.95 CR	Hugo Meriano  Argentina	7.31	Ronald Raborg  Peru	7.22
Triple jump	João Carlos de Oliveira  Brazil	16.40	Angel Gagliano  Argentina	15.15	Francisco Pichott  Chile	14.87
Shot put	José Carbolante  Brazil	16.83	José Carreño  Venezuela	15.70	José Jacques  Brazil	15.62
Discus throw	Sérgio Thomé  Brazil	52.24	Modesto Barreto  Colombia	50.64	José Jacques  Brazil	46.42
Hammer throw	Daniel Gómez  Argentina	64.66 CR	Celso de Moraes  Brazil	63.52	Ivam Bertelli  Brazil	63.40
Javelin throw	Mario Sotomayor  Colombia	66.96	Paulo de Faría  Brazil	66.50	Ramón Ángel Garmendia  Argentina	65.72
Decathlon	Tito Steiner  Argentina	7411	Renato Bortolocci  Brazil	7076	Ramón Montezuma  Venezuela	6976

Event	Gold		Silver		Bronze
100 metres (wind: +0.5 m/s)	Beatriz Allocco  Argentina	11.97	Beatriz Capotosto  Argentina	12.20	Carmela Bolívar  Peru Carla Herencia  Chile	12.27
200 metres	Beatriz Allocco  Argentina	24.7	Sueli Machado  Brazil	25.2	Flavia Villar  Chile	25.3
400 metres	Eucaris Caicedo  Colombia	55.3	Adriana Marchena  Venezuela	56.48	Marcela López Espinosa  Argentina	56.69
800 metres	Alejandra Ramos  Chile	2:12.3	Adriana Marchena  Venezuela	2:15.8	Aparecida Adão  Brazil	2:15.8
1500 metres	Alejandra Ramos  Chile	4:39.8	Maria Dias  Brazil	4:46.8	Mery Rojas  Bolivia	4:46.8
100 metres hurdles (wind: -0.5 m/s)	Edith Noeding  Peru	14.47	Themis Zambrzycki  Brazil	14.76	Maria Luisa Betioli  Brazil	14.80
4 × 100 metres relay	Argentina Araceli Bruschini Susana Perizzotti Beatriz Capotosto Beatriz Allocco	46.7	Chile Flavia Villar Carla Herencia Veronika Kinzer Pía Ábalos	47.8	Brazil Maria Levien Sueli Ferreira Conceição Geremias Barbara do Nascimento	47.8
4 × 400 metres relay	Brazil Tânia Miranda Sueli Machado Joyce Felipe dos Santos Inoilde Cruz	3:49.7	Argentina Graciela Escalada Beatriz Allocco Marcela López Silvia Augsburger	3:53.4	Venezuela Adriana Marchena Elsa Antúnez Yaneth Carvajal Lourdes Nicola	3:55.2
High jump	Maria Luisa Betioli  Brazil	1.80 CR	Beatriz Bonfim  Brazil	1.70	Beatriz Arancibia  Chile	1.60
Long jump	Yvonne Neddermann  Argentina	5.65	Themis Zambrzycki  Brazil	5.49	Conceição Geremias  Brazil	5.49
Shot put	Maria Boso  Brazil	13.80	Lorena Prado  Chile	13.26	Marinalva dos Santos  Brazil	12.59
Discus throw	Odete Domingos  Brazil	51.56 CR	Thea Reinhardt  Brazil	49.68	Patricia Andrus  Venezuela	40.86
Javelin throw	Patricia Guerrero  Peru	45.46	Neuza Trolezzi  Brazil	42.92	Magali Lopes  Brazil	41.18
Pentathlon	Conceição Geremias  Brazil	3863	Themis Zambrzycki  Brazil	3856	Yvonne Neddermann  Argentina	3425

Rank	Nation	Gold	Silver	Bronze	Total
1	Brazil (BRA)	17	16	15	48
2	Colombia (COL)	7	3	2	12
3	Argentina (ARG)	6	6	6	18
4	Venezuela (VEN)	3	6	5	14
5	Chile (CHI)	2	4	6	12
6	Peru (PER)	2	1	2	5
7	Bolivia (BOL)	0	1	1	2
8	Uruguay (URU)	0	0	1	1
Totals (8 entries)		37	37	38	112

• Men Results – GBR Athletics
• Women Results – GBR Athletics
• Medallists