Frank Russell Dancevic (Serbian Cyrillic:Френк Расел Данчевић; born September 26, 1984) is a Canadian professional tennis player. He first became the country's top singles player, according to ATP rankings, on February 10, 2003, as an eighteen-year-old, and remained so from January 30, 2006 until June 20, 2010. He is now the No. 3 Canadian in singles. Dancevic has reached two ATP singles finals (Indianapolis and Eastbourne), the quarterfinals of the 2007 Montreal Masters and achieved a career-high singles ranking of World No. 65 in September 2007.