| Competition: | Campeonato Paulista – Série A1 |
| Season: | 1966 |
| Winners: | Palmeiras |
| Relegated: | Bragantino Noroeste |
| Continentalcup1: | Torneio Roberto Gomes Pedrosa |
| Continentalcup1 Qualifiers: | Santos Palmeiras São Paulo Corinthians Portuguesa |
| Continentalcup2: | Taça Brasil |
| Continentalcup2 Qualifiers: | Palmeiras |
| League Topscorer: | Toninho Guerreiro (Santos) – 27 goals |
| Biggest Home Win: | Comercial 5-0 Botafogo (August 28, 1966) Portuguesa Santista 5-0 América (December 3, 1966) |
| Biggest Away Win: | Comercial 1-5 Palmeiras (December 7, 1966) |
| Highest Scoring: | Santos 7-5 Comercial (October 13, 1966) |
| Matches: | 210 |
| Total Goals: | 689 |
| Prevseason: | 1965 |
| Nextseason: | 1967 |
The 1966 Campeonato Paulista de Futebol da Divisão Especial de Profissionais,[1] organized by the Federação Paulista de Futebol, was the 65th season of São Paulo's top professional football league. Palmeiras won the title for the 15th time. Bragantino and Noroeste were relegated and the top scorer was Santos's Toninho Guerreiro with 27 goals. This was the first time since 1957 that a player other than Pelé emerged as the season's top scorer.[2]
The championship was disputed in a double-round robin system, with the team with the most points winning the title and the two teams with the fewest points being relegated.
| 1 | Toninho Guerreiro | Santos | 27 | |
|---|---|---|---|---|
| 2 | Paulo Bin | Comercial | 22 | |
| 3 | Ademar Pantera | Palmeiras | 19 | |
| 4 | Flávio Minuano | Corinthians | 16 | |
| 5 | Servílio | Palmeiras | 15 | |
| 6 | Babá | São Paulo | 13 | |
| 7 | Alberto Gallardo | Palmeiras | 12 | |
| Rivellino | Corinthians | |||
| Prado | São Paulo | |||
| Pelé | Santos | |||
| 11 | Américo Murulo | Guaraní | 11 |