Gillmore as a Baby Name. Meaning and Origin of Gillmore

What is the meaning of the name Gillmore ?

The baby name Gillmore is a Male name , 2 syllables long and is pronounced GIL-more (IPA: /ˈɡɪlmɔːr/; US: /ˈɡɪlmɔr/ or /ˈɡɪlmər/).

Gillmore is Irish (Gaelic), Scottish in Origin.

Gillmore is an Anglicized surname-turned-given name from Irish and Scottish Gaelic, rooted in Giolla Mhuire / Gille Mhoire, “servant” or “devotee of Mary.” In its patronymic forms Mac Giolla Mhuire and Ó Giolla Mhuire, the sense is “son/descendant of the devotee of Mary,” reflecting medieval devotional bynames to the Virgin. The double‑L spelling appears in records alongside Gilmore and Gilmour, with pronunciation typically GILL-more.

As a first name, Gillmore surfaced in the English-speaking world in the 19th century, aligned with the vogue for transferring surnames to given-name use; American usage occasionally favors the double‑L through family spellings, reinforced by figures such as Civil War general Quincy A. Gillmore (surname). Today it remains rare, lending a vintage, literary air. Variants include Gilmore, Gilmour, Gilmor, Gilmer, and the Gaelic Giolla Mhuire; related patronymics are MacGilmore/McGilmore. Possible nicknames are Gil and Mo.