This work deals an experimental study on wear behaviour of friction stir welded dissimilar AA6101-T6 and AA1350 aluminium alloys. The weldments are fabricated by varying tool traversing speed (78–120 mm/min), rotational speed (765–1070 rpm), and tilt angle (0°–2°). Effects of tool traversing speed, rotational speed, and tilt angle on wear behaviour of weld zone are analysed by conducting wear tests, measuring microhardness values and examining microstructural images of worn surfaces. Taguchi technique is used to analyse the effects of each welding parameter on wear behaviour. The results of this work indicate that the tool rotating speed is the most influencing parameter on the wear rate of weldments, when compared to traversing speed and tilt angle.