Sebastián Keitel Bianchi (born February 14, 1973, in Santiago) is a Chilean ex-sprinter who competed mostly in the 200 metres.

His grandmother, María Cristina Böcke was the South American discus throw champion in 1939.

[1] He has been successful at the regional level, and won a bronze medal at the 1995 World Indoor Championships.

[2] After his retirement, Keitel announced that he would run as a candidate for the Chamber of Deputies of Chile for the 2017 Chilean general election, as an independent affiliated with Political Evolution.

Keitel is a practicing Roman Catholic, has German, Italian, Swedish and Danish ancestry.