{{Infoboks_tennisturnering
| titel                 = US National Championships 1888
| billede               = Henry Slocum.jpg
| billedtekst           = [[Henry Slocum Jr.]] vandt sin første herresingletitel
| pixels                = 150px
| alt                   = 
| arrangør              = [[United States National Lawn Tennis Association|United States<br/>National Lawn Tennis Association]]
| turneringsnummer      = 8
| dato                  = [[20. august|20.]] - [[25. august]] [[1888]] (mænd)<br/>[[11. juni|11.]] - [[15. juni]] [[1888]] (kvinder)
| spillested            = [[Newport Cassino|Newport Casino Lawn Tennis Club]] (mænd)<br/>[[Philadelphia Cricket Club]] (kvinder)
| værtsby               = [[Newport (Rhode Island)|Newport]], [[Rhode Island]], [[USA]] (mænd)<br/>[[Philadelphia]], [[Pennsylvania]], [[USA]] (kvinder)
| underlag              = [[Græs]]
| kategori              = Nationalt mesterskab
| præmiesum             = 
| herresingle           = {{flagikon|USA|1877|size=18px}} [[Henry Slocum Jr.]]
| damesingle            = {{flagikon|USA|1877|size=18px}} [[Bertha Townsend]]
| herredouble           = {{flagikon|USA|1877|size=18px}} [[Oliver Campbell]]<br />{{flagikon|USA|1877|size=18px}} [[Valentine Hall]]
| damedouble            = 
| mixeddouble           = 
| herresingle_titel_nr  = 1
| damesingle_titel_nr   = 1
| herredouble_titel_nr  = 1
| damesouble_titel_nr   = 
| mixeddouble_titel_nr  = 
| antal_tilskuere       = 
| statistik_label_1     = 
| statistik_data_1      = 
| statistik_label_2     = 
| statistik_data_2      = 
| statistik_label_3     = 
| statistik_data_3      = 
| forrige               = [[US National Championships 1887|1887]]
| næste                 = [[US National Championships 1889|1889]]
}}
'''US National Championships 1888''' var den ottende udgave af [[US Open (tennis)|US National Championships]] i [[tennis]] (nu [[US Open (tennis)|US Open]]), og herreturneringerne blev afholdt i [[Newport Casino|Newport Casino Lawn Tennis Club]] i [[Newport (Rhode Island)|Newport]], [[Rhode Island]], [[USA]] i perioden [[20. august|20.]] - [[25. august]] [[1888]], mens damerne spillede i [[Philadelphia Cricket Club]] i [[Philadelphia]], [[Pennsylvania]] i perioden [[11. juni|11.]] - [[15. juni]] [[1888]].
Sport Kultur