Sēo '''Donua''' ({{Lang-la|Danuvius}}, of Iraniscum worde ''*dānu'' þæt mǣnþ "ēa" oþþe "strēam", ealdon CrēciscEaldcrēcisce Ἴστρος ''Istros'') is langestesēo lengeste ēa in þǣre [[Europisc Gesamnung|Europiscan Gesamnung]].
HēoHire onginnfruma is in þǣm [[Sweartweald]]e in [[Þēodiscland]]e, of twǣm lȳtlumlytlum ēam: sēo Brigach and sēo Breg. Hīe mētaþ be [[Donaueschingen]]; þēos geānlǣhte ēa is sēo Donua. Hēo flēwþ ēast 2850 km (1771 milesmīla), þurh syndrigamissenlica Europisca heafodbyrghēafodbyrg, and flēwþ in þǣm [[Sweart sǣ|Sweartan sǣ]] þoneþe sǣis æt þǣm Donuamūðan in [[Rumǣnia|Rumǣnie]] and [[Ucrægna]]n.
