Kristín Björk Jónsdóttir (born 7 February 1974) is an Icelandic former basketball player and a former member of the Icelandic national basketball team.
She was the captain of the KR team that won back-to-back national championships in 2001 and 2002.
In 2001 she was named the Icelandic Women's Basketball Player of the Year and the Úrvalsdeild Domestic Player of the Year.