According to Official Guinness Records,
The largest collection of football (soccer) memorabilia consists of 40,669 items, achieved by Philippos Stavrou Platini (Cyprus) in Museum of Michel Platini, Mosfiloti, Cyprus, as verified on 30 June 2017.The collection was assessed at the Michel Platini Museum in Cyprus. Most of the objects relate to Michelle Platini.The collection was assessed and verified by two members of Cyprus' Parliament.
For a complete list of 2017 records, please visit 2017 Guinness Records in Cyprus.