Hans Daniel Melchers (born 18 May 1938 in Apeldoorn) is a Dutch businessman. Melchers founded Melchemie Holland BV, and is major (15%) shareholder in HAL Investments BV. With a total capital of €460 million, Melchers reached a 36th spot in the 2005 edition of the Quote 500-list of the most wealthy Dutch.
His daughter, Claudia, was the victim of a kidnapping in September 2005. She was released after two days of confinement.