Smoking addiction and smoking behaviour are closely related to social deprivation. The aim of this study was to evaluate the impact of social deprivation and time perspective on smoking cessation in order to improve the support provided to socially deprived persons seeking to quit smoking. The study examined the impact of social disadvantages and time perspective on smoking cessation. 192 patients (including 45% of socially disadvantaged people) participated in the study. Social deprivation was measured using the EPICES scale, while time perspective was measured using the short version of the Zimbardo Time Perspective Inventory. Data relating to individuals' characteristics, smoking addiction, behaviour and smoking cessation were collected as part of this research. Compared to the rest of the population, socially disadvantaged people were found to be more likely to stop smoking for financial reasons (p < 0.0001). The study also found that their attempts to quit smoking are more likely to fail (p = 0,006). In addition, socially disadvantaged people suffer more frequently from anxio-depressive disorders (p < 0.0001) and are also prone to a higher level of nicotine dependence (p < 0.0001). The 'Past-Negative' and ?Present-Fatalistic' dimensions of time perspective, toward which socially disadvantaged people are more likely to lean (p < 0.0001), are associated with failed smoking cessation. The ?Future' dimension, in which socially disadvantaged people are less likely to project themselves (p < 0.0002), is a predictive factor of smoking cessation. The results highlight the importance of taking into account social deprivation and time perspective in helping socially disadvantaged patients to quit smoking.