Barbara Blatter (born December 22, 1970 in Wattwil) is a former Swiss mountain biker and two-time Olympian (2000, 2004).
Barbara Blatter was one of the most successful mountain bikers of her generation. One of the greatest success of the trained kindergarten teacher was winning the mountain bike World Cup in 2000, which they could repeat in 2001 again.
In 2000, she led the UCI World Ranking and won in Sydney at the Olympic Games silver medal.
She has won six World Cup races in her career and four consecutive Swiss championship titles in Cross Country (1999, 2000, 2001, 2002).
In the Cross Country Relay Mixed she was three times Vice World Champion, namely in the years 2000, 2003 and again in 2004 (with Florian Vogel, Nino Schurter and Ralph Näf).
At the 2004 Summer Olympics in Athens, she had to give up after the second of five rounds to be completed after a heat accumulation.
Barbara Blatter declared as a 34-year-old in January 2005 with immediate effect her resignation from professional sports. She expressed criticism of how the world's top will deal with the issue of doping - also with regard to their former teammate Filip Meirhaeghe.