Central Ostrobothnia
It borders the regions of Ostrobothnia , North Ostrobothnia , Central Finland and South Ostrobothnia . 
<triplet> Ostrobothnia <subj> South Ostrobothnia <obj> shares border with <triplet> North Ostrobothnia <subj> Central Finland <obj> shares border with <triplet> Central Finland <subj> North Ostrobothnia <obj> shares border with <subj> South Ostrobothnia <obj> shares border with <triplet> South Ostrobothnia <subj> Ostrobothnia <obj> shares border with <subj> Central Finland <obj> shares border with