We used first-principle simulation methods to generate amorphous TiO 2 (a-TiO 2) models and obtained chemically-ordered amorphous networks. We analyzed the structural and the electronic properties of the resulting computationally generated structures. We propose that two peaks found in the Ti-Ti pair correlation correspond to the edge-sharing and the corner-sharing Ti-Ti pairs. Resulting coordination numbers for Ti (6) and O (3) and the corresponding angle distributions suggest that local structural features in bulk crystalline TiO 2 are retained in our a-TiO 2 models. The electronic density of states and the inverse participation ratio reveal that highly-localized tail states at the valence band edge are due to the displacement of O atoms from the plane containing three neighboring Ti atoms; whereas, the tail states at the conduction band edge are localized on over-coordinated Ti atoms. The Γ-point electronic gap of approximately 2.0 eV is comparable to calculated results for bulk crystalline TiO 2.