Discover and Shortlist Your Perfect Baby Names!

Monahan as a Baby Name. Meaning and Origin of Monahan

Add to my Name List

The baby name Monahan is a Male name , 3 syllables long and is pronounced MON-ə-han (IPA: /ˈmɒnəhæn/; US: /ˈmɑːnəhæn/).

Monahan is Irish in Origin.

Gender: Male
Syllables: 3.0
Origin: Irish
Pronunciation: MON-ə-han (IPA: /ˈmɒnəhæn/; US: /ˈmɑːnəhæn/)

What is the meaning of the name Monahan ?

The baby name Monahan is a Male name , 3 syllables long and is pronounced MON-ə-han (IPA: /ˈmɒnəhæn/; US: /ˈmɑːnəhæn/).

Monahan is Irish in Origin.

Monahan is an Irish surname-turned-given name from the Gaelic Ó Manacháin, meaning “descendant of Manachán,” a diminutive of manach, “monk”; hence the sense “little monk” or “devout one.” The root appears in medieval hagiography through saints named Manchán/Manachán, which helped establish the name in Gaelic tradition and its persistence in family lines.

Found in Irish records after anglicization under English rule, Monahan later spread to Britain and North America, where it now fits the modern trend of surname first names. It is used for both sexes but leans masculine. Variant spellings and relatives include Manahan, Monohan, and the Gaelic Ó Manacháin; it is sometimes confused with Monaghan, a distinct surname from Muineachán (“little thicket”). Short forms such as Mo are common in casual use. As a given name, Monahan carries connotations of reflection, learning, and quiet strength drawn from its monastic roots.

Monahan is a genuine rarity. We hold just 9 recorded uses of it, from 4 countries.

Monahan has the following similar or variant Names

Monahan – Popularity by country

Based on birth registration data from national statistics agencies.

Country Gender Year Rank Born of
BD Girls 0 #406 1 8,413
OM Boys 0 #917 2 17,948
ZA Girls 0 #1,236 1 25,928
SA Boys 0 #1,687 5 28,008
BD
OM
SA
ZA

Did we miss something about this name? Let us know!

People also ask about Monahan

Monahan is predominantly a boy's name.
Monahan is a 3 syllable name, pronounced MON-ə-han (IPA: /ˈmɒnəhæn/; US: /ˈmɑːnəhæn/).
Common nicknames and spelling variations include Monaghan, Manahan, Monachan, Monahon, Ó Manacháin and O'Monaghan.
Across languages, Monahan has these equivalents: Monk (English surname/given name), Mönch (German surname), Monje (Spanish surname), Manach (Gaelic root).
Monahan is a name of Irish origin, traditionally used in Ireland. It doesn't appear in the major international birth registries we track, but it is an established name within Ireland and its diaspora communities.
Yes — it is. Monahan is missing from every national name ranking we cover, which marks it out as exceptionally uncommon.