The 1993 Australian 2.0 Litre Touring Car Championship was a CAMS sanctioned Australian motor racing title for drivers of under 2.0-litre cars complying with the provisions of the FISA Class II section of Australian Group 3A Touring Car regulations. It was contested in conjunction with the 1993 Australian Touring Car Championship, which began on 28 February 1993 at Amaroo Park and ended on 8 August at Oran Park Raceway after nine rounds. It was the third Australian 2.0 Litre Touring Car Championship and the first for cars aligned with FISA Class II regulations and thus the fore-runner of the Australian Super Touring Championship.
The championship was won by Peter Doulman, driving a 2.0-litre version of his old Group A BMW M3 (the car was an ex-JPS Team BMW and Mobil 1 Racing team car that had been built by Frank Gardner's JPS Team in 1987. Doulman had raced the car since 1989 with a 2.3 L engine). The championship went down to the wire with Doulman beating out the Caltex Team Toyota of John Smith. Smith's Caltex team boss Colin Bond finished third in the championship despite not being a starter in the final round at Oran Park.
Most of the 2.0 Litre field consisted of regular 'baby car class' competitors from Group A, including Frank Binding, Brad Stratton, Mike Conway, and veteran racer Bob Holden.