The Oranje finished in third place in the competition after beating Brazil in their playoff match on Saturday, and the former Liverpool man believes that the 30-year-old's guidance helped blend the team together.
Kuyt told reporters: "I've played in five tournaments and the togetherness of the squad has never been as great as it has been at this World Cup.
"It's something I haven't experienced before and a lot of that is down to Robin. I think we were a genuine team.
"He was injured for two months and fought so hard to come back – the way he led the team was fantastic."