Alpha 9 (α9) or Alpha-9 (α-9) may refer to:
Alpha 9 (Robert Silverberg anthology), a science fiction anthology edited by Robert Silverberg first published in 1978
Minolta α-9, a professional A-mount 35mm SLR by Minolta in 1998, also known as Dynax 9 / Maxxum 9
Minolta α-9Ti, a limited edition professional A-mount 35mm SLR by Minolta in 1999, also known as Dynax 9Ti / Maxxum 9Ti
Sony α9, a professional E-mount digital full-frame camera by Sony in 2017
Arty (musician), alias Alpha 9
