Sainio.
a Finnish surname
Meaning & usage
a Finnish surname
Where this word comes from
Possibly from saini, variant of saani (both dialectal words referring to a kind of sleigh), + -io, although the connection is not certain. Mostly from the late 19th and early 20th centuries during the Finnicization of surnames, but there are some possible references from historical sources, in which case the surname may have been revived from a historical surname.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.