He tagged the West Bank wall.
Banksy, who hails from the UK city of Bristol, never allows himself to be photographed and created the images last week.
Banksy is well known for his art stunts around the world. He condemned the wall but described it as "the ultimate activity holiday destination for graffiti writers".
His previous creations, which critics condemn as stunts, have included a bronze spoof of the statue of Justice from the Old Bailey, London, wearing thigh-high boots and a suspender belt.
He also embarrassed the British Museum by planting a hoax cave painting of a man pushing a supermarket trolley, which he said went unnoticed for three days.
My favorite Banksy ever, featuring TEH GAY.