Joana Valle Costa
Joana Valle Costa is a Portuguese tennis player.
Valle Costa has won two doubles titles on the ITF tour in her career. On 27 May 2013, she reached her best singles ranking of world number 782. On 25 February 2013, she peaked at world number 709 in the doubles rankings.
Valle Costa has a 0–3 record for Portugal in Fed Cup competition.
ITF finals (2–1)
Singles (0–1)
| Outcome | No. | Date | Tournament | Surface | Opponent | Score |
| Runner-up | 1. | 4 June 2012 | Amarante, Portugal | Hard |  Virginie Ayassamy | 4–6, 6–1, 2–6 |
Doubles (2–0)
| Outcome | No. | Date | Tournament | Surface | Partner | Opponents | Score |
| Winner | 1. | 28 May 2012 | Cantanhede, Portugal | Carpet |  Margarida Moura |  Aida Martínez Sanjuán Paula Mocete Talamantes | 7–5, 6–1 |
| Winner | 2. | 5 November 2012 | Guimarães, Portugal | Hard | Margarida Moura |  Kathinka von Deichmann  Stefanie Stemmer | 7–5, 3–6, |