Steven Mierdman (c.1510–1559) was among the most important Dutch printers of Reformation books.
Some time after 1546, to escape proceedings for having printed heretical books, he went to England.
In July 1550, Mierdman, who had already taken out letters of denization, was granted a royal licence for five years "to print various books hitherto unprinted" and to "employ printers, English and foreign."
While printing in London from 1549 to 1553, he printed a number of books in Latin, English, French, Italian and Dutch, the majority being Protestant tracts, many of them by members of the Dutch Reformed Church.
The number of books which bear Mierdman's imprint on the title page or colophon are but a small part of his extremely large output; he worked for a number of stationers and printed many books bearing fictitious imprints, such as "Niclaes van Oldenborch."