Peter Lars Mikael Borglund (born 29 January 1964 in Söderhamn, Gävleborg) is a retired javelin thrower from Sweden, who represented his native country at two consecutive Summer Olympics (1988 and 1992).
He is a five-time Swedish champion in the men's javelin event (1987, 1988, 1989, 1990 and 1996).
His personal best is 84.76 metres, thrown on August 19, 1989 in Stockholm.