Yes, not talking about DC Thor, kinda related as in Wonder Woman's great grand mother is still Gaea from her universe and Thor's mother is still Gaea from his universe. It's the same goddess from another universe.
Thor in the DCU is Wotan's brother, not son. Wotan, Loki and Thor are a trinity of gods that rule over Asgard. Bruhilde and the Valkyrie are Wotan's daughters that carry the slain.
In WW 184, Wonder Woman lead the the Valkyrie to battle back Mars who was attacking the Amazons. Wonder Woman was considered one of them. This is later reaffirmed in a weird way in Superman 761 where Thor calls upon Wonder Woman and Superman to help him battle back demons who are attacking Asgard. Wonder Woman says that she is honor-bound to help Thor. How is she honor bound to help Thor? Because she got help from the Valkyrie in the past. The Valkyrie were like her sisters, akin to the Amazons. Therefore Thor (being the brother of Odin) is Diana's honorary Uncle.