Solid　solutions　of　Pb1-xTbxTi1-xMnxO3　(0　＜=　x　＜=　0.10)　were　synthesized　by　a　traditional　solid　state　reaction　and　characterized　by　powder　X-ray　diffraction.　The　solutions　crystallize　in　the　P4mm　space　group　at　room　temperature.　Differential　scanning　calorimetry　(DSC)　measurements　were　performed　to　obtain　phase　transition　temperatures　(T-c)　for　the　samples,　and　these　were　found　to　decrease　with　an　increase　in　the　amount　of　doped　Tb　and　Mn.　The　temperature　dependent　dielectric　constant　shows　a　peak　close　to　the　T-c,　indicating　that　the　corresponding　phase　transition　is　a　ferroelectric　phase　transition.　Magnetic　measurements　indicate　that　a　paramagnetic　to　antiferromagnetic　phase　transition　occurs　at　25　and　29　K　for　Pb1-xTbxTi1-xMnxO3　with　x=0.08　and　x=0.10,　respectively.