Hubert Jacob Paul Schoemaker (March 23, 1950 – January 1, 2006) was a Dutch biotechnologist. He was a co-founder and the president of one of America's first biotechnology companies, Centocor, which was founded in 1979 for the commercialising of monoclonal antibodies. In 1999 he founded Neuronyx, Inc., for the manufacture of stem cells and the development of stem-cell therapies.