About Grennan
The surname Grennan is of Irish origin and is derived from the Gaelic name "Ó Gríofaín," meaning "descendant of Gríofa." Gríofa is a personal name derived from the word "gríobh," which means "gryphon" or "griffin" in Irish. The surname Grennan is primarily found in Ireland and is associated with County Offaly.
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The surname Grennan is a unique entry in our records. Discover more about its distribution and characteristics:
Below is the ethnic distribution of the surname Grennan based on recent US Census records. This is a brief glimpse into the diverse backgrounds of people carrying this surname.
Ranking information for the surname Grennan is not currently available.
Here's how to represent Grennan in Braille, each pattern of raised dots corresponds to a letter in the name.
The image below shows how you can spell Grennan using American Sign Language (ASL). In sign language, each hand shape corresponds to a specific a letter of the name.