thumb|right|100px|[[Ostrobothnia (administrative region)|Ostrobothnia on a map of Finland]]
Ostrobothnian Swedish () is a variety of Finland-Swedish, spoken in Finland. Outside the autonomous island province of Åland, which is officially monolingually Swedish, Ostrobothnia is the only region of mainland Finland where Swedish-speakers are the majority (51%).
Samples of dialects
Närpes-dialect recorded in 1982 by Ann-Marie Ivars (see file for transcription).
File:Finland Swedish Närpes Österbotten dialect 1982.ogg
Vörå-dialect recorded in 1962 by .
File:Finland_Swedish_Vörå_Österbotten_dialect_1962.ogg