Across the world, سيدل (Seidel 
, Seidl , سيدل) is a rare principally masculine, but very seldom female first name. The first name سيدل is habitual in the Democratic Republic of the Congo, where it is a rare boy's name, Austria, and Israel, where it is a rare gender-neutral name. Measured by absolute frequency, this name is the most popular in the Democratic Republic of the Congo, Germany, and China. Much more prevalently, سيدل is the last name as well as the forename.