Lenka Radová-Zemanová (born 9 October 1979 in Plzen) is a triathlete from the Czech Republic, who competed at two Olympic games (2004 in Athens, and 2008 in Beijing).
At the 2004 Summer Olympics, Radová-Zemanová finished in twenty-sixth place for the women's triathlon with a total time of 2:09:54.
Meanwhile, at the 2008 Summer Olympics, Radová-Zemanová started out of the competition by maintaining her pace in the swimming leg of the women's event.
Finishing in twenty-fourth place at both swimming and first transition phases, Radová-Zemanová had moved her way into a small group of competitors chasing the breakaways of the 40-km cycling race, until she crashed her bike and did not finish the race.
At the peak of her career, Radová-Zemanová took part in more than 50 ITU and ETU competitions, and had achieved twenty-nine top-ten finishes.
Her best results happened in 2002, when she claimed two silver medals at the ITU World Triathlon Cup in Madeira, Portugal, and in Tiszaújváros, Hungary.