Mohan
An Irish surname that most likely began as a nickname or diminutive form related to words for “little man” or “slave/servant.”
The #5,616 most common surname in the United States (2010 Census) — about 1 in every 49,894 Americans shares it.
Etymology
The strongest historical clue links Mohan with Irish Gaelic forms such as Moghan, which were analyzed by 19th-century scholars as a diminutive nickname built on a word for “man” or “servant/slave.” In that tradition, the name was explained as meaning something like “little man” or “labourer,” though early writers did not always agree on the exact root. Some later sources also treated Mohan as a variant in the wider Mahon/Mahon- family of Irish surnames, so the derivation is not entirely settled.
History
The surname is well attested in Irish surname collections under spellings such as Moghan, Mohan, Moughan, Moohan, Moan, and Mowen. It appears in records and later transcriptions as part of a cluster of surnames that were often Anglicized in several different ways, which helps explain the many variant forms. Because Irish surnames were frequently reshaped by pronunciation and spelling, Mohan can overlap historically with other seemingly similar names such as Mahon and Moon in older scholarship.
Origin
Regions
Variant spellings
Fun fact
Older Irish surname books sometimes placed Mohan in the same family of forms as Mahon, showing how one Gaelic name could generate several very different English spellings.
From the historical record
“MOGHAN I (Celt.) I Little Man, Labourer, MOHAN \ Slave [Ir. mogh, man, &c. + the MOHEN J dim. suff. -dn\ 2 for Mahon, q.v. MOGUE (Celt.) My Little Aedh = Ardour \0.\\. Maedhog for Mo-Aedh-og— mo, my + aedh (dh mute), ardour, fire -f the dim. suff. -dg] There were several saints called”
— Surnames of the United Kingdom: a concise etymological dictionary (2 vols in 1)