Avren Rocks (Bulgarian: скали Аврен, ‘Skali Avren’ ska-'li a-'vren) are three adjacent rocks situated in the interior of Micalvi Cove in the south extremity of Robert Island, South Shetland Islands. The group extends 260 m (280 yd) in north-south direction and is 150 m (160 yd) wide. The rocks were first mapped in 2008 by a Bulgarian team.