The former Bolton, Chelsea and Manchester City defender will join the Hammers on loan until January.
A statement on the club’s official website read: “West Ham United are delighted to announce the loan signing of Israel defender Tal Ben Haim and can confirm the club are close to securing another international player.
“Ben Haim is the fourth new face in Avram Grant’s squad in what has been a busy summer of arrivals. He is an experienced centre-back with a strong character. He can play across the back four and will provide top-level competition for the club’s existing defenders.”