Seosaimhin as a Baby Name. Meaning and Origin of Seosaimhin

What is the meaning of the name Seosaimhin ?

The baby name Seosaimhin is a Female name , 3 syllables long and is pronounced approx. "shuh-SAW-veen" (IPA: /ʃəˈsɑːviːn/ ).

Seosaimhin is Irish in Origin.

Seosaimhin is the Irish Gaelic feminine form of Josephine, built from Seosamh (Joseph) plus the diminutive suffix -ín applied to the genitive stem Seosaimh, yielding Seosaimhín and the meaning “little Joseph.” Through its Hebrew root Yosef, it also carries the sense “He will add/increase.” The name is closely tied to Irish Catholic tradition via devotion to St. Joseph, giving it a quietly devotional character while remaining distinctly Gaelic in form.

Used in Irish-speaking communities and appearing in civil records from the late 19th and early 20th centuries, Seosaimhin gained visibility during the Gaelic Revival as a native-language counterpart to Josephine. It remains uncommon but cherished in the Gaeltacht and among families seeking authentic Irish forms. Variants include Seosaimhín (standard with fada) and the unaccented Seosaimhin; English equivalents and related diminutives are Josephine, Josie, and Jo, with the masculine cognate Seosamh.

⚙ We can't find Seosaimhin in any of the birth registries or name datasets we track. Most often that means a rare name, a regional or heritage one, or a recent coinage. Either way, it remains a genuinely rare choice.