The synthesis of BaTiO3–MgFe2O4 composite powders by a Pechini-like one-pot process and resultingceramic bodies is described herein. Phase formation during the decomposition of homogenous (Ba, Ti,Fe, Mg)-gels was monitored up to 1200 ?C. Composite powders consisting of BaTiO3 and MgFe2O4 wereobtained after decomposition at 700 ?C for 1 h resulting in crystallite sizes of about 10 nm. The shrinkageand sintering behaviour of compacted powders were examined. Sintering at >1200 ?C leads to theformation of hexagonal BaTiO3 only for composites with a MgFe2O4 content of >30 wt.%. SEM imagesof ceramic bodies reveal that the MgFe2O4 particles are surrounded by BaTiO3 crystallites. Magneticmeasurements of both powders and corresponding ceramic bodies show ferrimagnetic behaviour withlow coercivities. At high-field and low temperatures an additional small paramagnetic contributionwas observed which increases with decreasing MgFe2O4 content and should be considered by the calculationof the saturation magnetization.Finally, the