| 1966 MLB season | |
|---|---|
| League | Major League Baseball |
| Sport | Baseball |
| Duration | April 11 – October 9, 1966 |
| Number of games | 162 |
| Number of teams | 20 |
| TV partner(s) | NBC |
| Draft | |
| Top draft pick | Steve Chilcott |
| Picked by | New York Mets |
| Regular season | |
| Season MVP | AL: Frank Robinson (BAL) NL: Roberto Clemente (PIT) |
| AL champions | Baltimore Orioles |
| AL runners-up | Minnesota Twins |
| NL champions | Los Angeles Dodgers |
| NL runners-up | San Francisco Giants |
| World Series | |
| Champions | Baltimore Orioles |
| Runners-up | Los Angeles Dodgers |
| World Series MVP | Frank Robinson (BAL) |
The 1966 Major League Baseball season was contested from April 11 to October 9, 1966. The Braves played their inaugural season in Atlanta, following their relocation from Milwaukee. Three teams played the 1966 season in new stadiums. On April 12, the Braves ushered in Atlanta–Fulton County Stadium with the Pittsburgh Pirates taking a 3–2 win in 13 innings. One week later, Anaheim Stadium opened with the California Angels losing to the Chicago White Sox, 3–1 in the Angels' debut following their move from Los Angeles to nearby Orange County. On May 8, the St. Louis Cardinals closed out old Sportsman's Park/Busch Stadium I with a 10–5 loss to the San Francisco Giants before opening the new Busch Memorial Stadium four days later with a 4–3 win in 12 innings over the Atlanta Braves.
In the World Series the Baltimore Orioles defeated the Los Angeles Dodgers four games to zero.