Stefan Hasselborg (born 30 April 1949) is a Swedish curler and curling coach.
He is a and .
From 1998 until 2010 he was a national coach of the Swedish Curling Association ().
In 1990 he was inducted into the Swedish Curling Hall of Fame.
He is from a well-known Swedish curling family; his younger brother is longtime teammate Mikael and Mikael's children are Anna (2018 Winter Olympics champion) and Marcus, and his own daughter Maria is also a curler.