Last Updated on July 14, 2026 by Mat Diekhake

The pre-merger era refers to the period before the NBA and ABA officially merged in 1976. It was an age defined by dominant centers, legendary rivalries, dynasty franchises and the emergence of many of basketball’s greatest players.

Although the game looked very different from today’s NBA, the stars of the pre-merger era laid the foundation for modern professional basketball. Their achievements, innovations and competitive excellence continue to shape the league decades later.

What Is the Pre-Merger NBA Era?

The pre-merger era covers the history of the NBA before the 1976 ABA-NBA merger.

During this period, the NBA featured iconic franchises such as the Boston Celtics, Los Angeles Lakers, New York Knicks and Philadelphia 76ers, while competing with the ABA for players and fans during the late 1960s and early 1970s.

Greatest Pre-Merger NBA Stars

Bill Russell

  • NBA Career: 1956–1969
  • Team: Boston Celtics
  • NBA Highlights:
    • 11-time NBA champion
    • Five-time NBA MVP
    • 12-time All-Star

Russell built the greatest championship résumé in NBA history while redefining defense, leadership and team basketball.

Wilt Chamberlain

  • NBA Career: 1959–1973
  • Teams: Philadelphia/San Francisco Warriors, Philadelphia 76ers, Los Angeles Lakers
  • NBA Highlights:
    • Two-time NBA champion
    • Four-time NBA MVP
    • 100-point game
    • Numerous NBA scoring and rebounding records

Chamberlain remains one of the most statistically dominant players the sport has ever seen.

Jerry West

  • NBA Career: 1960–1974
  • Team: Los Angeles Lakers
  • NBA Highlights:
    • NBA champion
    • Finals MVP
    • 14-time All-Star

Known as “Mr. Clutch,” West became one of the greatest guards in NBA history and inspired the NBA logo.

Oscar Robertson

  • NBA Career: 1960–1974
  • Teams: Cincinnati Royals, Milwaukee Bucks
  • NBA Highlights:
    • NBA champion
    • NBA MVP
    • Averaged a triple-double for an entire season

Robertson revolutionized the point guard position with his all-around brilliance.

Kareem Abdul-Jabbar

  • NBA Career: 1969–1989
  • Teams: Milwaukee Bucks, Los Angeles Lakers
  • NBA Highlights (Pre-Merger):
    • NBA champion
    • Three NBA MVP awards before 1976
    • One of the greatest centers ever

Kareem established himself as the league’s premier player before continuing his dominance after the merger.

Elgin Baylor

  • NBA Career: 1958–1971
  • Team: Los Angeles Lakers
  • NBA Highlights:
    • 11-time All-Star
    • One of the greatest scorers and forwards in NBA history

Baylor introduced a new level of athleticism and creativity to offensive basketball.

Bob Pettit

  • NBA Career: 1954–1965
  • Team: St. Louis Hawks
  • NBA Highlights:
    • NBA champion
    • Two-time NBA MVP
    • 11-time All-Star

Pettit became the first player to surpass 20,000 career points.

John Havlicek

  • NBA Career: 1962–1978
  • Team: Boston Celtics
  • NBA Highlights:
    • Eight-time NBA champion
    • Finals MVP
    • 13-time All-Star

Havlicek’s versatility and relentless energy made him one of the greatest all-around players ever.

Walt Frazier

  • NBA Career: 1967–1980
  • Teams: New York Knicks, Cleveland Cavaliers
  • NBA Highlights:
    • Two-time NBA champion
    • Seven-time All-Star
    • Seven-time All-Defensive Team

Frazier was the floor leader of the legendary Knicks championship teams.

Willis Reed

  • NBA Career: 1964–1974
  • Team: New York Knicks
  • NBA Highlights:
    • Two-time NBA champion
    • Finals MVP
    • NBA MVP

Reed’s inspirational return in Game 7 of the 1970 NBA Finals remains one of the league’s defining moments.

Rick Barry

  • NBA Career: 1965–1980
  • Teams: San Francisco/Golden State Warriors, Houston Rockets
  • NBA Highlights:
    • NBA champion
    • Finals MVP
    • Scoring champion

Barry excelled in both the NBA and ABA while becoming one of basketball’s greatest scorers.

Dave Cowens

  • NBA Career: 1970–1980
  • Team: Boston Celtics
  • NBA Highlights:
    • Two-time NBA champion
    • NBA MVP
    • Eight-time All-Star

Cowens combined relentless hustle with elite rebounding and defensive intensity.

George Gervin

  • NBA Career: 1976–1986 (NBA)
  • Team: San Antonio Spurs
  • NBA Highlights:
    • Four scoring titles
    • Nine-time All-Star

Although much of his early professional career was spent in the ABA, Gervin emerged as one of basketball’s greatest scorers.

Nate Thurmond

  • NBA Career: 1963–1977
  • Teams: San Francisco/Golden State Warriors, Chicago Bulls, Cleveland Cavaliers
  • NBA Highlights:
    • Seven-time All-Star
    • Hall of Fame center
    • First player officially credited with a quadruple-double

Thurmond was among the greatest defensive big men of his era.

Dave DeBusschere

  • NBA Career: 1962–1974
  • Teams: Detroit Pistons, New York Knicks
  • NBA Highlights:
    • Two-time NBA champion
    • Eight-time All-Star
    • Elite defender

DeBusschere played a vital role in New York’s championship teams.

Other Notable Pre-Merger NBA Stars

  • Sam Jones
  • Bill Sharman
  • Dolph Schayes
  • Paul Arizin
  • Bob Cousy
  • Lenny Wilkens
  • Gail Goodrich
  • Chet Walker
  • Billy Cunningham
  • Wes Unseld
  • Earl Monroe
  • Jo Jo White
  • Spencer Haywood
  • Connie Hawkins
  • Pete Maravich
  • Archie Clark
  • Tom Heinsohn
  • Bailey Howell
  • Zelmo Beaty
  • Hal Greer
  • Gus Johnson

The Dominant Teams of the Era

Several franchises defined the pre-merger NBA:

  • Boston Celtics
  • Los Angeles Lakers
  • New York Knicks
  • Philadelphia 76ers
  • Milwaukee Bucks
  • St. Louis Hawks

These teams won the majority of championships before the NBA expanded and the ABA merger reshaped the league.

How the Pre-Merger Era Changed Basketball

The pre-merger period established many of the traditions and playing styles that still define the NBA today.

Key developments included:

  • The rise of superstar centers.
  • The Celtics’ championship dynasty.
  • The Lakers-Celtics rivalry.
  • Greater television exposure.
  • Expansion into new markets.
  • Increasing competition from the ABA.

The eventual ABA-NBA merger in 1976 brought new talent, innovative playing styles and several successful franchises into the NBA.

Frequently Asked Questions

What is considered the pre-merger NBA era?

The pre-merger era includes all NBA seasons before the ABA-NBA merger in 1976.

Who was the best player of the pre-merger era?

Bill Russell, Wilt Chamberlain, Kareem Abdul-Jabbar, Jerry West and Oscar Robertson are widely regarded as the greatest players of the era.

Why was the ABA merger important?

The 1976 merger brought elite players, exciting styles of play and four ABA franchises into the NBA, helping shape the modern league.

Were pre-merger players as talented as today’s NBA stars?

While the game has evolved significantly, the greatest pre-merger players dominated their own era and introduced many of the skills, strategies and competitive standards that continue to influence the NBA today.