Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
MARTYN
As described in historical dictionaries
Patronymica Britannica (1860)
LIARTIN. MARTYN. From the personal name, rendered illustrious by St. Martin, the apostol of the Gauls. Many places in Normandy were dedicated to him, and from one of these sprang the great family who came hitlier at the Conquest under the name of De Sancto Marti no. Both as a personal designation, and a surname, it is very widely spread in all the countries of western Europe. At Paris it is amongst the very commonest of all family names, answering to our own Smith for frequency. Its derivatives are Martins and Martinson. Martineau is well naturalized here, and Martinelli, Martinez, Martini, and other foreign forms are becoming so. The name of the Saint was perhaps derived from the Latin maHhis, waiiike.
Surname type: From given name or forename
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English