Arnold Bloch Leibler is an Australian law firm headquartered in Melbourne, Australia.

Its head office is located in the Commercial Bank of Australia building, at 333 Collins St in Melbourne.

[5][6] The firm originated in a 1969 partnership between the lawyers Mark Leibler and Arnold Bloch.

Its boardrooms are named for the firm's founder Arnold Bloch, Ron Castan,[Note 1] and Sir Zelman Cowen.

[13][14][15] The firm was additionally involved in the setting up of Australia's Reconciliation Action Plan program, the Uluru statement from the heart, and its partner Mark Leibler has made public statements in support of the Voice to Parliament.