The paper associated with this dataset, "Reimagining the shape of porous tubular ceramics using 3D printing", describes the simulation, design and 3D printing of porous ceramic tubes in sinusoidal and twisted shapes. The designs were based on Computational Fluid Dynamics (CFD) simulations and were fabricated using 3D printing and a thermal post-treatment step. The dataset contains: a) the results of Computational Fluid Dynamics (CFD) simulations for tubes with different design parameters, b) the raw data of rheological characterisation of the 3D printing resin and thermogravimetric analysis (TGA) of the 3D printed structures, c) the raw data of material characterisation and mechanical testing of the sintered ceramic tubes, including X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), mercury intrusion porosimetry, and compression testing.