Haskin
A surname most likely built from the medieval personal name Haskin, a pet form of Hans or John.
The #9,716 most common surname in the United States (2010 Census) — about 1 in every 92,466 Americans shares it.
Etymology
Haskin is usually understood as a surname formed from a pet name or diminutive of the given name Hask, Haskin, or similar short forms related to Hans, the medieval German and English form of John. In that chain, the ultimate root is Hebrew Yohanan, meaning "God is gracious." The ending -kin is a common Middle English diminutive, so the name likely began as "little Hask" or "son of Hask."
History
The surname appears to belong to the broad English patronymic tradition that turned personal names into inherited family names in the Middle Ages. It is less common today than related forms such as Haskins, which may be a later plural or possessive-style development. In North America, the name is usually found in English-descended families, though independent spelling variation is always possible.
Origin
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Fun fact
The -kin ending in surnames often signals a nickname or diminutive, as in Watkin, Jenkins, and, likely here, Haskin.