1999–2000 Club Atlético Boca Juniors season

The 1999–2000 Club Atlético Boca Juniors season was the 70th consecutive Primera División season played by the senior squad.

Summary
The club' s main goal for Apertura was clinching its three consecutive League title for the first time in its history. The squad was reinforced with few players included forward Alfredo Moreno. The race for the title started early against archrivals River Plate during the whole season. Finally, the club finished in 3rd place, just below Millonarios, thanks to key injured players and a 0–2 defeat against River.

In the Clausura Tournament, the club was reinforced with several players including forward Marcelo Delgado from Racing. The team finished in 7th place. A key event of the season came in the game against Newell's Old Boys. Because fireworks were thrown on the field, the game was suspended, and a judicial sanction deducted 3 points in the standings. In the replay, Newell's won the match and Boca Juniors finished below Champions River Plate.

Meanwhile, the club returned to play in the Copa Libertadores for the first time in six years. They advanced to the quarterfinals, defeating archrivals River Plate. In the semifinals the squad eliminated Mexican team America thanks to a Samuel goal in the final minutes of the second leg. In the Finals of the tournament the squad defeated incumbent Champions Palmeiras after a penalty shoot-out, clinching the cup for the first time in 22 years.