Sabrina Dallafior Matter (born 13 August 1970 in Basel, Switzerland) is a Swiss diplomat. She has served as Ambassador of Switzerland to Finland since August 2023 and was elected in November 2025 as Director-General of the Organisation for the Prohibition of Chemical Weapons (OPCW). She is scheduled to take office on 25 July 2026, becoming the first woman to lead the organisation.
From 2019 to 2023, she was Consul General of Switzerland in Milan. In 2023, she was appointed Ambassador of Switzerland to Finland.
In November 2025, she was elected Director-General of the OPCW for a four-year term beginning in July 2026.