Sadie \s(a)-die\ as a girl's name. Diminutive of Sarah (Hebrew) "princess". Used as an independent name at the beginning of the 20th century. Actress Sada Thompson.

Sadie has 11 variant forms: Sada, Sadah, Sadelle, Saida, Saidee, Saidey, Saidie, Saydie, Sydell, Sydella and Sydelle.

Baby names that sound like Sadie are Sade, Sadia, Sadye, Sadee and Zadie.