No.
Yes it is!
sheridan isn't a common name because only one of a kind people have this name. Tahitians used this name to crown their queens. Kings however loathed the name. People around the world today have used "Sheridan" in their cooking & liquers. Be honoured to have this.
Nicollette Sheridan's birth name is Colette Sheridan.
Ann Sheridan's birth name is Sheridan, Clara Lou.
Jamey Sheridan's birth name is James Patrick Sheridan.
Rondell Sheridan's birth name is Rondell Jerome Sheridan.
Tye Sheridan's birth name is Tye Kayle Sheridan.
Sheridan Edley's birth name is Gloria Sheridan Edley.
Sheridan Fitzgerald's birth name is Sheridan Joanna Fitzgerald.
Sheridan Morley's birth name is Sheridan Robert Morley.
Lea Vernon's birth name is Lea Shampanier.
Lea Sutinen's birth name is Lea Sulku.