Ronald Johnson is an American wide receiver for the USC Trojans football team.

Johnson attended Muskegon High School in Muskegon, Michigan. He was rated as the best recruit in Michigan in the class of 2007 by Rivals.com. He had 1,600 all-purpose yards as a wide receiver on offense in 2006, including 700 receiving yards on 26 catches (26.9 avg.) with 7 touchdowns and 347 rushing yards on 30 carries (11.6 avg.) with 4 touchdowns, 180 yards on 7 kickoff returns (25.7 avg.), 218 yards on 11 punt returns (19.8 avg.), and 3 touchdowns as a cornerback. Muskegon went 14-0 and won the 2004 and 2006 State Championship. Johnson chose to attend USC after being recruited by many other top schools including Texas, Florida, Michigan, Ohio State, Michigan State, and Notre Dame.

Following the departures of Dwayne Jarrett and Steve Smith, Johnson made an immediate impact after arriving at USC. He joined junior Patrick Turner who was the most experienced returner at the position. Johnson has been clocked at 4.4 seconds in the 40 yard dash.