{{Infoboks fodboldbiografi
|name=Masafumi Nakaguchi
|image=
|fullname=Masafumi Nakaguchi
|birth_date=
|birth_place=
|height=175 cm
|position=[[Midtbanespiller]]
|currentclub=
|clubnumber=
|years1              = 1995–1996 |clubs1 = [[Gamba Osaka]]                                  |caps1 = 0 |goals1 = 0
|years2              = 1997–2001 |clubs2 = [[Sagawa Express Osaka SC|Sagawa Express Osaka]] |caps2 =   |goals2 = 
|manageryears1       = 2002–2005
|managerclubs1       = [[Sagawa Express Osaka SC|Sagawa Express Osaka]] (assistant)
|manageryears2       = 2006
|managerclubs2       = [[Sagawa Express Osaka SC|Sagawa Express Osaka]]
|manageryears3       = 2007
|managerclubs3       = [[Sagawa Shiga FC|Sagawa Express]]
|manageryears4       = 2008–2012
|managerclubs4       = [[Sagawa Shiga FC|Sagawa Shiga]]
|manageryears5       = 2013–2015
|managerclubs5       = [[Gamba Osaka]] (assistant)
|manageryears6       = 2016–2019
|managerclubs6       = [[MIO Biwako Shiga]]
|manageryears7       = 2020–
|managerclubs7       = [[Vanraure Hachinohe]]
}}
'''Masafumi Nakaguchi''' (født [[10. april]] [[1972]]) er en [[Japan|japansk]] tidligere [[fodboldspiller]].
Levende_personer