<p>A series of semiconducting π-conjugated metalloporphyrins were synthesized for thin-film organic field-effect transistor (OFET) devices. These compounds exhibited <i>p</i>-channel OFET characteristics. The highest charge-carrier mobility of 4.05 cm²V⁻¹&#xa0;s⁻¹ and I_on/off ratios of 10⁷ were obtained for the compound with copper as a central metal. The computational studies revealed the packing patterns and frontier molecular orbitals, which resulted in an optimum bandgap of 2.77–2.89&#xa0;eV for these metalloporphyrins and support constant charge ejection during the functioning of the OFET. The higher absorbance, emission, and Stokes shift values are favorable owing to their broad utility. The scanning electron microscope (SEM) analysis of fabricated active layers reveals uniform and homogeneous self-assembled films. These outcomes indicate that these metalloporphyrins are promising candidates for effective <i>p</i>-type organic semiconducting transistors.</p> Graphical Abstract <p>A series of solution-processable triarylamine-based metalloporphyrins showed excellent <i>p</i>-type OFET performance with charge carrier mobilities up to 4.05 cm²V⁻¹&#xa0;s⁻¹ and a high on/off current ratio of 10⁷. Computational and morphological studies confirmed favorable packing, bandgap, and uniform films, highlighting them as promising candidates for <i>p</i>-type organic semiconducting transistors.</p>