The Robin Hood actor took to Twitter to express his disapproval of the process, which he feels is attempting to "correct nature".
"Circumcision is barbaric and stupid. Who are you to correct nature? Is it real that God requires a donation of foreskin? Babies are perfect," he posted. "I love my Jewish friends, I love the apples and the honey and the funny little hats, but stop cutting your babies.
"I will always stand for the perfection of babies. I will always believe in God, not man's interpretation of what God requires. Last of it, if you feel it is your right to cut things off your babies please unfollow and f**k off; I'll take attentive parenting over barbarism."
However, Crowe deleted the offensive posts on Friday morning after drawing considerable criticism, later writing: "I have a deep and abiding love for all people of all nationalities. I'm very sorry that I have said things on here that have caused distress.
"My personal beliefs aside I realise that some will interpret this debate as me mocking the rituals and traditions of others. I am very sorry."
Crowe recently fulfilled his promise to teach a special acting workshop to students at Durham University.