Steve, the default avatar in Minecraft
Steve Burnside, character in the Resident Evil series
Steve Austin, the "Six Million Dollar Man"
One of LaneKim and Zach van Gerbig's twins on the television show Gilmore Girls.
Steve Rogers, the real identity of the Marvel Comics character CaptainAmerica, portrayed by American actor ChrisEvans
Steve Carlsberg, character in the podcast "Welcome To NightVale"