Jacob Gelt Dekker (22 April 1948 – 1 September 2019) was a Dutch businessman, philanthropist, and writer. Born in Oterleek, North Holland, Dekker attended school between 1961 and 1967 in Alkmaar and later studied dentistry in Amsterdam. He received an Executive MBA from Erasmus University of Rotterdam and the University of Rochester. Dekker was treated for cancer. After he published The Caribbean (Amsterdam Publishers 2018), he started work on a publication about immigrants.