František Jansa

František Jansa (born 12 September 1962) is a Czech former athlete who specialised in the pole vault. He represented Czechoslovakia at the 1983 World Championships finishing tenth in the final. In addition, he was the 1981 European Junior Championships gold medallist.

His personal bests in the event are 5.62 metres outdoors (Prague 1983) and 5.55 metres indoors (Prague 1985).