Aitto-oja

== Finnish == === Etymology === aitto- +‎ oja === Pronunciation === IPA(key): /ˈɑi̯tːoˌ(ʔ)ojɑ/, [ˈɑ̝i̯t̪ːo̞ˌ(ʔ)o̞jɑ̝] Rhymes: -ojɑ Syllabification(key): Ait‧to‧o‧ja Hyphenation(key): Aitto‧oja === Proper noun === Aitto-oja a Finnish surname ==== Declension ==== ==== Statistics ==== Aitto-oja is the 1839th (tied with 3 other surnames) most common surname in Finland, belonging to 461 individuals, according to August 2025 data from the Digital and Population Data Services Agency of Finland.