Qatar, Saudi Arabia and Egypt are among 17 countries including Britain, France and Canada that signed a declaration demanding that Hamas lay down its arms and no longer govern Palestine.
The joint statement after the high-level conference at the United Nations (UN) also condemned the Hamas attack on October 7 and demanded the release of all hostages still being held.
The declaration urged Hamas to hand over its weapons to the Palestinian Authority as part of efforts to reach a two-state solution.
However, Israel and the United States (US) did not attend the UN conference and did not sign the declaration.
French Foreign Minister Jean-Noel Barrot described the move as a historic moment because it was the first time Arab powers had openly rejected Hamas and demanded that the group be removed from power.
British Foreign Secretary David Lammy supported the joint statement at the UN that insisted that Hamas should not be glorified following the attack on October 7.
He also urged Hamas to release all hostages, accept a ceasefire and step down from governing Gaza.
UN agencies have also warned that the crisis in Gaza is caused by human actions, causing mass starvation with more than 100 deaths from malnutrition.
Israel has been blamed for blocking all aid supplies to Gaza, while Israel has accused Hamas of stealing the aid that has been channeled.
