Bikar Atoll (Marshallese: Pikaar, [pʲi͡ɯɡɑːrˠ]) is an uninhabited atoll in the Ratak Chain of the Marshall Islands. It is one of the smallest atolls in the Marshalls and located at 12°14′N 170°08′E / 12.233°N 170.133°E / 12.233; 170.133. Due to its relative isolation from the main islands in the group, Bikar has a largely undisturbed flora and fauna that has been allowed to exist in a relatively pristine condition.