According to Official Guinness Records,
The largest collection of sporting 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.All items in Philippos's collection relate to football.
For a complete list of 2017 records, please visit 2017 Guinness Records in Cyprus.