Wōdejebato (formerly known as Sylvania) is a Cretaceous guyot or tablemount in the northern Marshall Islands, Pacific Ocean. Wōdejebato is probably a shield volcano and is connected through a submarine ridge to the smaller Pikinni Atoll southeast of the guyot; unlike Wōdejebato, Pikinni rises above sea level. The seamount rises for to depth and is formed by basaltic rocks. The name Wōdejebato refers to a sea god of Pikinni.