Katerina Kroupová-Sisková (Katerina Kroupová, born 20 February 1974) is a former professional Czech tennis player.
In her career, Kroupová-Sisková won eight singles and 12 doubles titles on the ITF circuit.
On 4 January 1993, she reached her best singles ranking of world number 58.
On 7 August 1995, she peaked at number 104 in the WTA doubles rankings.