Ronaldo has scored eight Champions League hat-tricks. That total places him joint-top in the competition’s history alongside Lionel Messi, with both players far ahead of most other scorers.
Ronaldo’s eight trebles came during his Champions League career with Manchester United, Real Madrid and Juventus. His most prolific period was at Real Madrid, where his finishing, movement and aerial ability made him a constant threat in both group matches and knockout ties.
His record includes a memorable four-goal performance in Real Madrid’s 8–0 win over Malmö in December 2015. He also scored hat-tricks in consecutive knockout matches during the 2016–17 campaign, against Bayern Munich and Atlético Madrid.
A hat-trick means three or more goals in one match; scoring four still counts as one hat-trick, not two. The figure also concerns the Champions League competition itself, rather than every European Cup match under older historical formats.