Per Nils Welinder (born April 17, 1962) is a Swedish entrepreneur and former professional skateboarder. During the 1980s he achieved international fame as a freestyle skater and was a leading member of the Powell-Peralta skate team known as the "Bones Brigade". He had a number of influential video parts with Powell during the 1980s, a series of signature models, and roles in several Hollywood movies. Welinder also has the unique distinction of being the only person to have ever beaten Rodney Mullen in a professional skate contest.