Objective: To evaluate the prevalence, knowledge, and attitudes of ex-smokers in an university in Konya.

Methods: This study was consisted of 613 ex-smoker university students. The participants were selected by multiphase sampling from 17 different faculties. Data were obtained via questionnaire technique by interviewing. The Chi-square test was used for statistical analysis.

Result: In the majority of ex-smokers (98 %), the initiation age of smoking was under 21 years. 70.0 % of ex-smokers had had knowledge of harmful effects of smoking. The most effective way of smoking-cessation was sudden quitting (55.7 %).

Conclusion: Cigarette smoking is an important public health problem in Turkey. An effective and comprehensive-national tobacco control program is urgently needed.