Saidey \sa(i)-dey\ as a girl's name is a variant of Sadie. See for origin and meaning of Saidey.
The baby name Saidey sounds like Saidee, Sade, Saidie, Saida and Sadee. Other similar baby names are Laidey, Sandy, Sandee, Sande, Cadey, Kaitey, Caitey, Haidee, Jaidee, Heidey, Jaide, Kaidee, Laidy, Ladey, Maydey, Saige, Salley, Sammey, Samey, Sidney and Sideny.