This chapter discusses Scottish Gaelic, a Celtic language with a growing number of speakers according to official statistics. First, it considers the historical context of Gaelic, and the demographic make-up of current speakers. In particular, it covers the results of recent national censuses in Scotland in 2001, 2011, and 2022 including speaker location and age profile. The chapter then considers key legislation and policy support for Gaelic surrounding the revitalisation movement from the 1970s onwards known as the `Gaelic renaissance'. The chapter also discusses acquisition trajectories for Gaelic speakers including provision and location of education in Gaelic. Finally, the chapter considers the linguistic characteristics of Gaelic as spoken today by different social groups. It concludes with a discussion on the future of Gaelic noting changes in community structure and speaker identity rather than total language loss.