O'Fallon Name Meaning, Origin and Heraldry

Some records give Fallon; others give O'Fallon. Both point to the same Irish family name. Taken at its root, O'Fallon points to “Descendant of Fallamhan (ruler)”.

Heraldry and the O'Fallon name

There is no single O'Fallon family crest for every bearer. Herald Lab researches the arms historically associated with the name and explains whose they were.

O'Fallon and Fallon

The O' in front of the name is a particle that was often added to Fallon in records. Regional accents shaped spellings long before dictionaries fixed them. Other spellings include Falloon and Faloon.

According to the 2010 US Census, the O'Fallon surname had 562 bearers. It sits within the 50,000 most common last names in the country. Get the complete O'Fallon report, with a museum-style coat of arms.