The Reds enjoyed many stellar moments in the year under review as Klopp finally added silverware to a great job that started four years prior.
Liverpool won their sixth European Cup in June after defeating Tottenham Hotspurs 2-0 in the UEFA Champions League final.
That triumph was made possible by a remarkable comeback in the semi-final second leg at Anfield as Klopp’s men overturned a three-goal deficit suffered against Barcelona in the first leg to advance.
Liverpool also missed out on a first Premier League title by a single point to Manchester City on the final day of the season, but are on track to rectify that as they sit ten points clear of second-placed Leicester City in this campaign.
Liverpool added the UEFA Super Cup to their trophy haul by beating Chelsea in August and were crowned FIFA Club World Cup Champions last week after beating Flamengo.
Those achievements have made Klopp a proud man as highlighted in his end-of-year message to the supporters.
"It is, naturally, a time to briefly reflect on an incredible year for these boys, this club and, of course, our supporters," Klopp wrote in a message to fans on the club's official website.
"I think you know me well enough by now, I am not a guy for looking back, not when there is work to do. But how can I ignore what we have all experienced in this year?
"I have just one word for it: wow.
"I am so proud of many things. Of course, firstly for everyone to have the chance to celebrate Liverpool being trophy winners once again.
"For as long as I live, I will never forget that night in Madrid and the following day in Liverpool as we brought the Champions League home. I remember I once said the city would 'explode' when we won a trophy, but I think I even may have underestimated it a bit. Those scenes…I cannot even think of them now without getting goose bumps.
"That day, you made us go through every kind of emotion and when I looked people in the eye from up on that bus, it reinforced what I’ve known since October 8, 2015 – I am the luckiest man alive to be a part of this football club, a part of this special family.
"That we were also able to follow the Champions League up with two more trophies, the Super Cup and the FIFA Club World Cup, as well as producing week after week in the Premier League, says everything about these boys.
"Seriously, I could not be any prouder than I am to be the manager of these players.
"I have called them the 'mentality monsters' at various points throughout 2019 because they keep delivering, no matter what the circumstances, no matter what the odds.
"Of course, this was never truer than that night against Barcelona at Anfield when they went beyond 100 per cent, they pushed themselves to their absolute maximum and then more, and delivered something special."