Matilda Aku Alomatu Osei-Agyeman (born 1970) is a former Miss Ghana who became a diplomat.

At a meeting of the Ghanian diaspora in Britain she appealed to them to assist their home country.

[4][6] In November 2024 President Akufo-Addo created five new Ghanian ambassadors including Regina Appiah-Sam to Spain and Vivian Kafui Akua Asempapa to Senegal.

[7] Alomatu had served earlier in her career as a diplomat in Vienna and Geneva.

She presented her credentials on 19 December 2024 to the United Nation's Ghada Waly in Vienna.