Meunier was full of praise for the 26-year-old forward, who now has 10 goals in as many games this season.
"He was excellent. It was the great Neymar, as he has already proved in the past," he said.
"He has already scored two and three goals in a match before. We all know his qualities.
"We can be proud to have a player like that in our team – and he can be proud of who he has around him as well."
Neymar admitted to reporters after a star showing in Europe that he had just delivered his finest performance of the 2018-19 campaign.
Asked he had hit a new high, he said: "Yeah, it was so far.
"Not just my best game but also from our team.
"It's not important whether I score or not. I just want my team to win, although when I score I become even happier."
Edinson Cavani, Angel Di Maria and Kylian Mbappe were also on the scoresheet for PSG, who are third in Group C on three points.