#4 Luis Adriano (2014-15)
Luiz Adriano's four-goal first-half blitz propelled Shakhtar Donetsk to a commanding 5-0 lead on a balmy night in Borisov. In the process, the Ukrainian champions became the first team to amass five away goals in the first half of a Champions League game.
Adriano scored his fifth of the night from the penalty spot as Shakhtar equaled the record (7-0) for the biggest away win in Champions League history.
It was Adriano's first Champions League hat-trick as he became the first player after Lionel Messi to score five goals in a Champions League game.
In the process of recording the 93rd hat-trick in the Champions League, Adriano became the second Brazilian player (also Adriano Leite Ribeiro) to score multiple hat-tricks in the competition.
#5 Zlatan Ibrahimovich (2013-14)
Zlatan Ibrahimovic scored his first (and only) Champions League hat-trick when the Swedish striker scored four times in Paris St. Germain's 5-0 home win over Belgian side Anderlecht in a group game of the 2013-14 Champions League.
Ibrahimovic opened the scoring by slotting the ball into an empty net before a sublime back-heel followed by a sumptuous curler brought about his first hat-trick in the competition. The Swedish striker scored his fourth of the game at the hour mark as PSG eased to a resounding win.
It was the 86th instance of a hat-trick in the Champions League as Ibrahimovic became the 68th different player and the first from Sweden to score three or more goals in the competition.
Also read: Cristiano Ronaldo's Champions League scoring records