Meaning & origin
What it means
Fennessy goes back to Irish Ó Fionnghusa, meaning “descendant of Fionnghus.”
Adapted from Wiktionary (CC BY-SA 4.0)
How it developed
From Irish Ó Fionnghusa (“descendant of Fionnghus”).
Adapted from Wiktionary (CC BY-SA 4.0)
Fennessy’s family of names
In English usage, Fennessy as a surname has a related form in FENNESSEY. In English usage, Fennessy as a surname has a related form in FENNESSEY.
The ring: nicknames and forms.
Nicknames & forms 1
Diminutives, pet forms, short forms and variants used alongside the name.
Similar names
If you love Fennessy, these share its style, era, origin or sound, from outside its own family.
Finnerty
“descendant of Fionnachta”
—
Feeney
“descendant of Fiannaidhe”
—
Fedlimid
Fedlimid is a masculine given name from Irish.
>99% boys
Faherty
“descendant of Fathartach”
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Feeley
Feeley is a surname from Irish.
—
Deasy
Deasy is a surname from Irish.
27% boys · 73% girls
Feehan
“descendant of Fiachán”
—
Ferrall
Ferrall is a surname from Irish.
60% boys · 40% girls