The main advantages of using perovskite manganite in electrical and magnetic devices are its tunable transition temperature, minimized eddy current loss, and low cost. These properties can be elevated by the addition of foreign dopants, which leads to the surface effect. In this work, nanocrystalline BaMn1−xTixO3 (x = 0.00, 0.25, 0.50. 0.75, 1.00) perovskites have been synthesized via conventional solid-state reaction method. To investigate structural, electrical, and morphological properties, these materials have been characterized by various techniques. X-ray diffraction patterns demonstrate that BaMnO3 adopts a 2H hexagonal structure, while BaTiO3 crystallizes into tetragonal crystal symmetry. The combination of phases has also been observed in Ti-doped BMO. With increasing Ti concentration, average crystallite size is found to decrease from 44.34 to 36.29 nm. The grain growth of materials due to Ti-doping has been observed by field effect scanning electron microscope (FESEM) images. Corresponding elements are present in stoichiometric amounts in all perovskites, as revealed by energy dispersive spectroscopy (EDS) analyses. The frequency-dependent dielectric constant (at a different temperature) of all the samples indicates the usual dielectric dispersion behavior. The tetragonal phase of BTO shows a high dielectric constant of about 3200 at 350 °C.