Most E cigarette Users Ages 18 to 29 Never Smoked Before American Cancer Society Can vapes save the world from smoking? The Record Which Countries Smoke the Most Worldwide Compare the Market AUS For the first time, World Health Organization has estimated global e cigarette use and the numbers are alarming: more than 100 million people worldwide are now #vaping. Alexey Kulikov Top 20 countries with the highest smoking rates, according to data from the World Health Organization (WHO) and Wisevoter: Nauru: This small island nation in the Pacific tops the list with Share of adults who smoke or use tobacco Our World in Data