Multiferroic　ceramics　Bi0.8Ba0.2Fe　1-xMnxO3　with　x=0.0,　0.05,　0.1,　and　0.15　were　prepared　by　using　conventional　solid　state　reaction　method.　The　structural,　magnetic,　ferroelectric　and　dielectric　properties　were　investigated.　The　phase　transition　from　rhombohedral　to　tetragonal　structure　with　increasing　Mn　substitution　concentration　was　confirmed　by　using　X-ray　diffraction.　Magnetic　measurements　indicated　that　the　remanent　magnetization　of　Bi　0.8Ba0.2Fe0.95Mn0.05O3　(x=0.05)　is　around　2.64　times　higher　than　that　of　Bi0.8Ba　0.2FeO3　(x=0.0),　which　is　probably　due　to　the　coexistence　of　rhombohedral　and　tetragonal　phase　that　destructs　the　cycloidal　spin　structure　and　enhances　the　ferromagnetic　properties　significantly.　The　ferroelectric　measurements　revealed　that　the　leakage　current　is　significantly　suppressed　with　an　increase　in　the　Mn　content.　In　addition,　Mn　doping　was　found　to　be　helpful　to　reduce　dispersion　in　dielectric　constant　and　loss,　especially　at　lower　frequencies.　Furthermore,　an　anomaly　in　the　dielectric　constant　was　observed　in　the　vicinity　of　the　magnetic　transition　temperature,　which　could　be　attributed　to　the　intrinsic　magnetoelectric　coupling　effect.　It　is　also　worth　noting　that　the　intensity　of　the　dielectric　anomaly　peak　for　the　sample　of　x=0.05　was　highest　(∼183.4)　among　all　the　samples,　which　indicated　that　the　magnetoelectric　coupling　effect　could　be　greatly　improved　by　enhanced　ferromagnetic　properties.　©　2013　Elsevier　Ltd　and　Techna　Group　S.r.l.