As of 2018, only six artists have won Album of the Year more than once as the main credited artist: Frank Sinatra (1960, 1966, 1967), Stevie Wonder (1974, 1975, 1977), Paul Simon (1976, 1987), U2 (1988, 2006), Taylor Swift (2010, 2016) and Adele (2012, 2017). Sinatra and Wonder both won the award three times as the main credited artist.
who won album of the year in 2017
Adele