Former Fulham winger Luis Boa Morte has been offered a new contract but the West Ham are releasing strikers Ilan and Mido.
Portugal international Boa Morte, 32, returned in April from nine months out with a serious knee injury.
He apologised to Hammers co-owner David Sullivan after criticising his comments about the team in a TV interview.
Boa Morte scored for the Hammers in their last Premier League match when they drew 1-1 with Manchester City.
It was his second goal in 80 apperances for West Ham since he was signed by Alan Curbishley for £5m in January 2007.