The role of The Transtheoretical Model (TTM) in predicting relapse is limited. We aimed to assess whether thismodel can be utilised to predict relapse during the action stage. The participants included 120 smokers who hadabstained from smoking for at least 24 hours following two Malaysian universities’ smoking cessation programme.The smokers who relapsed perceived significantly greater advantages related to smoking and increasing doubt intheir ability to quit. In contrast, former smokers with greater self-liberation and determination to abstain wereless likely to relapse. The findings suggest that TTM can be used to predict relapse among quitting smokers.