The Day of Remembrance for All Victims of Chemical Warfare is an annual event held November 30 as a tribute to the victims of chemical warfare. It is officially recognised by the United Nations (UN) and has been celebrated since 2005.

• This commemoration provides an opportunity to pay tribute to the victims of chemical warfare.
• It also provides an opportunity to reaffirm the commitment of the Organisation for the Prohibition of Chemical Weapons (OPCW).
• On November 11, 2005, during the last day of the United Nations' Tenth Session of the Conference of the State Parties, the members of the UN officially recognised the Day of Remembrance for All Victims of Chemical Warfare, following a suggestion by Rogelio Pfirter, Director-General of the Secretariat.