Using data from the 1991, 2001 and 2012 Aboriginal Peoples Survey, this study examines the prevalence of smoking among Inuit aged 15 or older, by location of residence, sex and age group. Overall, the prevalence of daily smoking was significantly lower in 2012 than in 1991; this was true for Inuit living inside and outside Inuit Nunangat, for men and women, for most age groups, and for those in all Inuit regions except Nunavik. The average number of cigarettes smoked per day by daily smokers decreased steadily and significantly over time, except among those living outside Inuit Nunangat or in Nunavik, and those aged 55 or older. The average age of daily smoking initiation remained stable at 15.