Oxide materials are attractive due to their low toxicity, low cost, and high chemical robustness, which make them particularly suited as TEs for high-temperature automotive and industrial applications. However, while oxides often show large Seebeck coefficients, they also tend to have low electrical conductivity, large lattice thermal conductivity, and low ZT . There has therefore been substantial research into enhancing the σ and minimising the κ latt , for example by doping and alloying. Reports of large theromelectric power factors in cobaltites in the 1990s initiated research into several families of materials, leading to several promising materials including the p-type layered cobaltites Na x CoO 2 , Ca 3 Co 4 O 9 and Bi 2 Sr 2 Co 2 O y and ntype ZnO , SrTiO 3 and CaMnO 3 . Of these, SrTiO 3 (STO) is among the most promising and most widely studied thermoelectric oxide perovskite due to its chemical flexibility and high thermal stability. However, there have been relatively few studies of the thermoelectric properties of CaTiO 3 and BaTiO 3 , particularly in the non-cubic space groups adopted by these systems at low-to-mid temperature.