Daniela Casanova (born 14 May 1984) is a former tennis player from Switzerland.

She achieved career-high WTA rankings of 456 in singles on 8 July 2002 and 402 in doubles on 17 June 2002.

Playing for Switzerland in Fed Cup, Casanova has a win-loss record of 0–2.

She was coached by her father, Leo Casanova, and Zoltan Kuharszky, and received advice from Melanie Molitor.

She has a brother, Sandro, and a younger sister, Myriam, who also has been a professional player.