Sviatlana Pirazhenka, Belarusian tennis player
Sviatlana Aliaksandrauna Pirazhenka (Belarusian: Святлана Аляксандраўна Піражэнка; born 12 September 1992) is an inactive Belarusian tennis player.

Pirazhenka has won four singles and 20 doubles titles on the ITF Circuit. On 18 August 2014, she reached her career-high singles ranking of world No. 371. On 7 July 2014, she peaked at No. 253 in the WTA doubles rankings.

Pirazhenka made her WTA Tour debut at the 2014 Gastein Ladies, partnering Irina Falconi in doubles. The pair lost their first-round match against Kateryna Bondarenko and Nicole Melichar in three sets.