An electronic cigarette, e-cigarette or personal vaporizer, is a battery-powered device that provides inhaled doses of nicotine or non-nicotine vaporized solution, while no smoke or combustion is actually involved in its operation. The manufacturers often describe their product as an alternative to smoked tobacco products, such as cigarettes, cigars, or pipes. Electronic cigarette can be used indoors where traditional smoking is prohibited and is not subject to the restriction of the use of tobacco products. On the evidence of many countries, electronic cigarettes are witnessing a significant increase in global distribution and sales. This increase coincides with implementation of Article 8 of the WHO FCTC (Protection from exposure to tobacco smoke) that is leading to the introduction of smoke free environments in many countries. As market penetration of these products continues to rise, policymakers and regulators in many countries have sought guidance from WHO on the scientific evidence base and optimal regulatory approaches to be taken with regard to these products. Today, Macedonia and Serbia have a strong national ban on smoking in all public indoor places, and in some cases on the outer surface, so that the use of electronic cigarettes is becoming popular. In the market, there are different models of electronic cigarettes that are mainly buying and selling online. The aim of this study was to examine the legal status of this product in Macedonia, Serbia and Bosnia and Herzegovina, reasons for the use or ban, and users’ opinions of these products.