Peter Thomas Ratajczyk (January 4, 1962 – April 14, 2010), known professionally as Peter Steele, was an American musician, best known as the lead vocalist, bassist and composer of the gothic metal band Type O Negative. Before forming Type O Negative, Steele had formed the heavy metal group Fallout and the thrash metal band Carnivore.

As the frontman for Type O Negative, Steele was known for his vampiric appearance, 6 ft 7 in (2.01 m) stature, rich bass vocals, and a dark, often self-deprecating sense of humor. His lyrics have been described as "often intensely personal, dealing with subjects including love, loss and addiction." Steele credited Black Sabbath and the Beatles as his key musical influences. He has been listed among the "66 Best Hard Rock and Metal Frontmen of All Time" by Loudwire.