1966 NBA playoffs

The 1966 NBA playoffs was the postseason tournament of the National Basketball Association's 1965–66 season. The tournament concluded with the Eastern Division champion Boston Celtics defeating the Western Division champion Los [Angeles Lakers] 4 games to 3 in the NBA Finals.
The Celtics won their eighth consecutive NBA title and ninth overall, defeating the Lakers in the Finals for a fifth straight time.
This was the last NBA playoffs under the "top team in each division gets a first-round bye" format established in 1955, although teams receiving a bye would be reused in 1975, and strictly for division winners from 1977–1983. the 1967 NBA playoffs featured an eight-team tournament with no first-round byes.

Division Semifinals

This was the third playoff meeting between these two teams, with the Celtics winning both prior meetings.

Boston leads 2–0 in all-time playoff series

This was the second playoff meeting between these two teams, with the Bullets winning the first meeting.

Baltimore leads 1–0 in all-time playoff series

This was the 10th playoff meeting between these two teams, with the Celtics winning five of the first nine meetings.

Boston leads 5–4 in all-time playoff series

This was the eighth playoff meeting between these two teams, with the Hawks winning five of the first seven meetings.

St. Louis leads 5–2 in all-time playoff series

This was the fifth playoff meeting between these two teams, with the Celtics winning the first four meetings.

Boston leads 4–0 in all-time playoff series