Margaret Elter (c. 1525 - c. 1 February 1553), or Marguerite d'Elter, was a noblewoman from Guelders, relative of Anna 't Serclaes (wife of John Hooper, bishop of Gloucester), and Protestant refugee in Cambridge and Strasbourg.
In March 1548 at Strasbourg she married the Spanish Protestant Francisco de Enzinas, and shortly afterwards moved with him to England.
When her husband returned to Strasbourg in November 1549, she refused to accompany him, citing the baby's delicate health and the perils of winter travel.
The plague took hold of the city in the winter of 1552/3, and Margaret Elter died about 1 February 1553, little more than a month after the death of her husband.
In July 1555, Anna Elter married the cavalry officer Guillaume Rabot de Salène, in a match arranged by the Elector Palatine.