Meaning and name origin
Sydelle \s(y)-delle, syd(el)-le\ as a girl's name is of Hebrew and Old English origin, and the meaning of Sydelle is "wide island". Sydelle is a variant of Sadie: diminutive of Sarah (Hebrew) "princess". Also a variant of Sydney (Old English); also possibly place name: Saint Denis.
Sydelle is not a popular first name for females and an equally uncommon surname or last name for all people (2000 U.S. Census).
Displayed below is a comparison of the popularity of the girl name Sydelle and its variant forms. Popular variation forms ranked in the Top 1000/100 are Sadie (#46), Sarah (#50) and Sydney (#109). (2014 statistics).