Josef Horký (born February 3, 1972) is a Czech former swimmer, who specialized in freestyle, butterfly, and individual medley events.

[1] He is a two-time Olympian (1996 and 2004), a semifinalist in the 200 m butterfly at the European Championships (2002), and a member of Kometa Brno under his head coach Ondřej Butir.

On the first day of the Games, he managed to pull off a top 16 effort in the 400 m individual medley, edging out Australia's Trent Steed to earn a fourteenth spot by almost a full second in 4:28.39.

[4][5] After an eight-year absence, Horky competed only in the men's 4×200 m freestyle relay, and served as a senior captain for the Czech swimming team at the 2004 Summer Olympics in Athens.

[6][7] Teaming with Michal Rubáček, Květoslav Svoboda, and Martin Škacha in heat two, Horky swam a third leg and recorded a split of 1:53.29, but the Czechs settled only for seventh place and thirteenth overall in a final time of 7:26.26.