Joseph Mendes da Costa (4 November 1863 – 20 July 1939) was a Dutch sculptor and teacher.

Later, Costa enrolled at the newly founded Quellinusschool where he studied under Bart van Hove.

[1][2] He is known for sculpted ornaments on buildings and became a draughtsmanship teacher at the Rijksakademie van beeldende kunsten who had many pupils himself, including Eva Cremers, Adrianus Johannes Dresmé, Therese van Hall, Bertha Koster-thoe Schwartzenberg, Jan de Meijer (1878–1950), Frank de Miranda, Adrianus Remiëns, Coba Surie, his nephew by marriage Joseph Teixeira de Mattos, and Tjipke Visser.

From 1911–1925 he lived and worked in Laren, North Holland but then moved back to Amsterdam.

In 1932 Helene Kröller-Müller commissioned him to design the impressive statue of her personal friend General Christiaan de Wet in the Hoge Veluwe National Park.