Sebastian Bach (born Sebastian Philip Bierk, on April 3, 1968) is a Canadian heavy metal singer, best known as ex-frontman of Skid Row.

Born in Freeport, Bahamas, and raised in Peterborough, Ontario, he attended nearby Lakefield College School. He currently resides in Middletown, New Jersey.

He and his wife, Maria Bierk, have three children, 2 sons, and 1 daughter. Their names are: Paris, London, and Sebastiana. (Sebastiana was born in 2007). His son Paris is the drummer of New Jersey metal band Severed Hand, who have opened up for him on occasion and were also featured on the VH1 special I Marr...