Reports in the French media have suggested that the PSG star could join the Premier League champions this summer but Guardiola shut down the reports.
The City boss said: "I'm so sorry for Le Parisien but it's not true. I'm sorry for them because the information they were leaked was false.
"Neymar is an incredible player and, with the information I have, an incredibly nice guy. So leave him calm, let him express the huge talent he has in Paris alongside [Lionel] Messi and all the big stars they have.
"But I would say Manchester City every season bought 150 players. It looks like we are interested in all players around the world. You know that is not true. I'm sorry for Neymar, of course!"
Guardiola is irritated that Phil Foden, John Stones and Ilkay Gundogan are not part of the club's pre-season tour of the United States and fears that the absences of the trio could lead to City dropping points when the Premier League season begins.
Asked if he was disappointed not to have the players, Guardiola said: "Yeah, a lot. I would like them to be here.
"The second season here [2017/18], when we finished with 100 points, that was the only pre-season when we were all together from day one. Since then it's always four players arrive, then after a few weeks some other ones and we start the season with incredible problems. That's why we drop every season at the beginning many, many points."