Grullón
A surname most likely of Spanish-language origin, probably built from a nickname or local word now obscured by later spelling and pronunciation changes.
The #7,411 most common surname in the United States (2010 Census) — about 1 in every 68,732 Americans shares it.
Etymology
No single secure derivation is widely established for Grullón in standard surname dictionaries. It looks Spanish in form, and it may preserve a nickname, a regional word, or a reduced/altered form of an older personal name or place-name. Because the name is relatively uncommon and can reflect local Dominican or Caribbean spelling traditions, its exact literal meaning is uncertain.
History
The surname is especially associated today with the Dominican Republic and Dominican diaspora communities, where Spanish-language surnames often preserve older Iberian family lines alongside locally stabilized spellings. In U.S. records it appears as a relatively uncommon Hispanic surname, and the accent mark in Grullón is often retained in formal usage though omitted in some documents.
Origin
Regions
Variant spellings
Fun fact
The accent in Grullón can change how the name is pronounced in Spanish, so it is often preserved in formal documents even when English-language records drop it.