Look up Merck in Wiktionary, the free dictionary.
Merck refers primarily to the German Merck family and three companies founded by the family, including:
- the Merck Group, a German chemical, pharmaceutical and life sciences company founded in 1668
- Merck Serono (known as EMD Serono in the United States and Canada), a pharmaceutical company headquartered in Darmstadt, Germany, and a brand and division of Merck focused on biopharmaceuticals
- Merck & Co., Inc. (known as MSD (Merck Sharp & Dohme) outside North America), an American pharmaceutical company and a former subsidiary of the German Merck company, as founded in 1891/1917
- H. J. Merck & Co., a German bank founded in 1799
Merck may also refer to: