Petar Trendafilov (Bulgarian: Петър Трендафилов, born 11 September 1984) is a former professional Bulgarian tennis player.

On 10 February 2014, he reached his highest ATP singles ranking of 825 whilst his best doubles ranking was 660 on 3 November 2014.

[1][2][3][4][5] Petar Trendafilov debuted for the Bulgaria Davis Cup team in 2012.

Since then he has 1 nomination with 3 ties played, his singles W/L record is 0–0 and doubles W/L record is 3–0 (3–0 overall).