Ostrobothnia Tōa-khu
Ostrobothnia (Hun-lân-gí: Pohjanmaan; Sūi-tián-gí: Österbotten) sī chi̍t ê Hun-lân ê tōa-khu (maakunta).
| Ostrobothnia Tōa-khu Pohjanmaan maakunta landskapet Österbotten |
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| — Tōa-khu — | |||
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| Kok-ka |  Hun-lân
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| Bīn-chek | |||
| - Lóng-chóng | 7,932.36 km2 | ||
| Bāng-chām | www |
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