Molby - who scored 61 goals in 292 games for Liverpool during the 1980s and early 1990s - is adamant Kuyt would be on the teamsheet.
Speaking to LFC TV, the Dane said: "As a player you look at someone and think 'Would I like to play against him?' And no, I wouldn't, because Dirk pesters and he's at you non-stop. He's running, he's working, he's closing you down.
"I think the training (under Kenny Dalglish) has really benefitted him. There are a lot more touches for individual players and Dirk's first touch has improved because of that.
"I always say this about him - and I mean it: he would walk into any team in the world. Because of the things he gives you.
"He wouldn't be their best footballer but I think he would play in Barcelona's team."