Xenia Knoll, Swiss tennis player
Xenia Knoll (Serbian Cyrillic: Ксенија Кнол, romanized: Ksenija Knol; born 2 September 1992) is a Swiss tennis player.

Knoll has won two doubles titles on the WTA Tour and one WTA 125 doubles title, as well as four singles and 28 doubles titles on the ITF Circuit. On 23 March 2015, she reached her career-high singles ranking of world No. 254. On 17 April 2017, she peaked at No. 40 in the WTA doubles rankings.

Knoll made her WTA Tour debut at the 2013 Budapest Grand Prix with a direct entry into the main draw, losing in straight sets to the former world-ranked No. 11, Shahar Pe'er of Israel.Playing for the Switzerland Fed Cup team, Knoll has a win–loss record of 0–1.