The Oder is known by several names in different languages, but the modern ones are very similar: English and German: Oder; Czech, Polish, and Lower Sorbian: Odra, Upper Sorbian: Wódra; Kashubian: Òdra (pronounced

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The Oder is 840 kilometres (522 miles) long: 112 km (70 miles) in the Czech Republic, 726 km (451 miles) in Poland (including 187 km (116 miles) on the border between Germany

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The Oder is navigable over a large part of its total length, as far upstream as the town of Koźle, where the river connects to the Gliwice Canal

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Main section:
Ostrava – Bohumín – Racibórz – Kędzierzyn-Koźle – Krapkowice – Opole – Brzeg – Oława – Jelcz-Laskowice – Wrocław – Brzeg Dolny –

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Ostravice – Olza – Ruda – Bierawka – Kłodnica – Czarnka – Mała Panew – Stobrawa – Widawa – Jezierzyca – Barycz – Krzycki Rów – Obrzyca

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Opava – Psina (Cyna) – Cisek – Olszówka – Stradunia – Osobłoga – Prószkowski Potok – Nysa Kłodzka – Oława – Ślęza – Bystrzyca – Średzka Woda – Cicha Woda – Kaczawa – Ślepca –

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Under Germania Magna the river was known to the Romans as the Viadrus or Viadua in Classical Latin, as it was a branch of the Amber Road from the Baltic Sea to the Roman Empire. In Germanic languages, including English, it was and still is called the Oder,

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