Here’s a list of all the top scorers in Champions League since its inception, in the 1992/1993 season.
Champions League Top Scorers since inception
2019/2020: 15 goals, Lewandowski (Bayern Munich)
2018/2019: 12 goals, Messi (Barcelona)
2017/2018: 15 goals, Ronaldo (Real Madrid)
2016/2017: 12 goals, Ronaldo (Real Madrid)
2015/2016: 16 goals, Ronaldo (Real Madrid)
2014/2015: 10 goals, Messi (Barcelona), Neymar (Barcelona), Ronaldo (Real Madrid)
2013/2014: 17 goals, Ronaldo (Real Madrid)
2012/2013: 12 goals, Ronaldo (Real Madrid)
2011/2012: 14 goals, Messi (Barcelona)
2010/2011: 12 goals, Messi (Barcelona)
2009/2010: 8 goals, Messi (Barcelona)
2008/2009: 9 goals, Messi (Barcelona)
2007/2008: 8 goals, Ronaldo (Manchester United)
2006/2007: 10 goals, Kaka (AC Milan)
2005/2006: 9 goals, Shevchenko (AC Milan)
2004/2005: 8 goals, Van Nistelrooy (Manchester United)
2003/2004: 9 goals, Morientes (Monaco)
2002/2003: 12 goals, Van Nistelrooy (Manchester United)
2001/2002: 10 goals, Van Nistelrooy (Manchester United)
2000/2001: 7 goals, Raul (Real Madrid)
1999/2000: 10 goals, Jardel (FC Porto), Raul (Real Madrid), Rivaldo (Barcelona)
1998/1999: Shevchenko (Dynamo Kyiv), Yorke (Manchester United)
1997/1998: 10 goals, Del Piero (Juventus Torino)
1996/1997: 5 goals, Pantic (Atlético Madrid)
1995/1996: 9 goals, Litmanen (Ajax Amsterdam)
1994/1995: 7 goals, Weah (PSG)
1993/1994: 5 goals, Stoichkov (Barcelona)
1992/1993: 5 goals, Sauzée (Olympique Marseille)
Source: Reddit