The Hammers will play against Austria Vienna in their first game of pre-season following a week long training camp.
They will then play a few games back in England against lower league opposition before travelling to Germany to take on FC Rot-Weiß Erfurt, Dynamo Dresden and FC Energie Cottbus.
Pre-season will finish with the visit of Ipswich Town to the Boleyn Ground on Saturday 4th August.
2012/13 Pre-season fixtures
(All kick-off times local)
Sat 7 July - Austria Vienna (Generali Arena, 4pm)
Tue 10 July - Boreham Wood (Meadow Park, 7.30pm)
Sat 14 July - Southend United (Roots Hall, 3pm)
Tue 17 July - Oxford United (Kassam Stadium, 7.45pm)
Sat 21 July - Colchester United (Weston Homes Community Stadium, 3pm)
Wed 25 July - FC Rot-Weiß Erfurt (Steigerwaldstadion, 7pm)
Fri 27 July - Dynamo Dresden (Glücksgas Stadion, 7.30pm)
Sun 29 July - FC Energie Cottbus (Stadion der Freundschaft, 2.30pm)
Sat 4 August - Ipswich Town (Portman Road, 3pm)