Oder is of German origin, derived from the Old High German word 'Otmar', which means 'wealth' or 'fame'. It's a name that has been used historically but is less common today. In Scandinavia, particularly in Norway and Sweden, Oder has been used as a given name, often spelling it with an 'e' at the end like 'Öder'.
Oder is quite uncommon as it only had five births annually in 1915, with no further reported births since then, making its total number of births just five.