Darryl "Flea" Virostko (born December 25, 1971) is a professional "big wave" surfer from Santa Cruz, California. He graduated from Santa Cruz High School in 1991. He is a three-time Mavericks competition winner. Virostko appears as himself in the surfing films Riding Giants, Step Into Liquid, and Billabong Odyssey. Surfer declared his 2004 wipeout on a 50-foot wave at Waimea Bay, Hawaii, the "Wipeout of the Decade"

As of 2009 Virostko is a recovering addict, and runs a program, "FleaHab", to teach other recovering addicts how to surf and be active while learning a new way of life.He starred in The Westsiders a documentary film by Josh Palmer that chronicles his difficult upbringing and addiction to drugs, on the west side of Santa Cruz.