Marsh

The surname Marsh is of topographical origin, denoting someone who lived near a marsh or bog. It derives from the Old English word 'mersc', meaning 'marsh' or 'fen'. Surnames derived from topographical features were very common in medieval England, as they provided a clear way to distinguish individuals based on their immediate environment. Over time, these surnames became hereditary.

As a given name, Marsh is much rarer and is typically a transferred use of the surname. It gained some limited usage as a first name, particularly in English-speaking countries, often as a way to honor a family surname. Its use as a first name remains uncommon, maintaining its strong association with its topographical roots.