Sainio

== Finnish == === Etymology === 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. === Pronunciation === IPA(key): /ˈsɑi̯nio/, [ˈs̠ɑ̝i̯nio̞] Rhymes: -ɑinio Syllabification(key): Sai‧ni‧o Hyphenation(key): Sai‧nio === Proper noun === Sainio a Finnish surname ==== Declension ==== ==== Statistics ==== Sainio is the 331st most common surname in Finland, belonging to 2,411 individuals, according to August 2025 data from the Digital and Population Data Services Agency of Finland. === References ===