Batavian \Ba*ta"vi*an\, a. Of or pertaining to (a) the Batavi, an ancient Germanic tribe; or to (b) ?atavia or Holland; as, a Batavian legion. {Batavian Republic}, the name given to Holland by the French after its conquest in 1795. Batavian \Ba*ta"vi*an\, n. A native or inhabitant of Batavia or Holland. [R.] --Bancroft.