Hans Daniel Melchers is a Dutch businessman. Melchers founded Melchemie Holland BV, and is major (15%) shareholder in HAL Investments BV. With a total capital of Euro 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.

Since the early 1990s until 2007, Melchers was a major sponsor of the Dutch Bridge Federation (NBB). In 2008 Melchers started his own professional bridge team.