Michael J. Wytrwal (12 September 1882 in Kraków, Prussia – 21 January 1970 Amsterdam, New York) was one of the successful businessmen and entrepreneurs of the early 1900s in Amsterdam, New York. He was actively engaged in managing a diversified portfolio of business interests that serve as the precursor to today's conglomerate. These interests include real estate, pharmaceuticals, furniture, timber holdings, insurance, defense contracting, consumer goods, banking and financial services, textiles, and energy via the M. J. Wytrwal Coal & Oil Company based in Amsterdam's famous Reid Hill in upstate New York and the Clyde Bank Knitting Company in Fort Plain.