John Nost (died 1729) was a Flemish sculptor, from Mechelen. He was employed by Arnold Quellin, and married his widow. He moved to England at the end of the seventeenth century, and set up business in Haymarket. He was prolific and received many commissions, including work at Melbourne Hall, Castle Howard, Buckingham House and Chatsworth. Many of his statues were in lead.His nephew John van Nost the younger (d.1780) carried on the business, moving to Dublin around 1750.