The Collaborative International Dictionary of English v.0.48:

Woden \Wo"den\, n. [AS. W[=o]den; akin to OS. W[=o]dan, OHG.
   Wuotan, Icel. O[eth]inn, and probably to E. wood, a. Cf.
   Wednesday.] (Northern Myth.)
   A deity corresponding to Odin, the supreme deity of the
   Scandinavians. Wednesday is named for him. See Odin.
   [1913 Webster]
   [1913 Webster]

WordNet (r) 3.0 (2006):

Woden
    n 1: chief god; counterpart of Norse Odin and Teutonic Wotan
         [syn: Woden, Wodan]