Seidel is a surname of German origin.
As of 2014, 75.2% of all known bearers of the surname Seidel were residents of Germany (frequency 1:1,150), 13.2% of the United States (1:29,401), 3.8% of Brazil (1:58,599) and 1.2% of Poland (1:34,522).
In Germany, the frequency of the surname was higher than national average (1:1,150) in the following states: [1]