Gabriela Castro (born 11 July 1966) is an Argentine former professional tennis player.
Since 2012, Castro has been a director and coach at CEI Tennis in Buenos Aires. She operates the centre with Spanish former professional player Ana Almansa, who runs the Barcelona venue.
| Loss | Jul 1989 | Portugal Open, Portugal | Clay | Conchita Martínez | Iva Budařová Regina Rajchrtová | 2–6, 4–6 |
| $25,000 tournaments |
| $10,000 tournaments |
| Loss | 1. | 29 November 1987 | Buenos Aires, Argentina | Clay | Cristina Tessi | 3–6, 1–6 |
| Loss | 2. | 30 May 1988 | Adria, Italy | Clay | Inmaculada Varas | 5–7, 6–3, 3–6 |
| Loss | 1. | 24 August 1987 | Porto, Portugal | Clay | Ana Segura | Janet Souto Ninoska Souto | 6–4, 2–6, 0–6 |
| Win | 1. | 31 August 1987 | Vilamoura, Portugal | Clay | Ana Segura | Sandrine Jaquet Andrea Martinelli | 6–2, 6–1 |
| Loss | 2. | 21 March 1988 | Reims, France | Clay | Ana Segura | Luciana Tella Andrea Vieira | 3–6, 7–5, 2–6 |
| Loss | 3. | 4 April 1988 | Bari, Italy | Clay | Ana Segura | Michaela Frimmelová Petra Langrová | 4–6, 5–7 |
| Loss | 4. | 15 August 1988 | Caltagirone, Italy | Clay | Ana Segura | Janet Souto Titia Wilmink | 4–6, 2–6 |
| Win | 2. | 18 June 1989 | Modena, Italy | Clay | Conchita Martínez | Debora Garat Florencia Labat | 6–3, 6–2 |
| Win | 3. | 26 June 1989 | Arezzo, Italy | Clay | Conchita Martínez | Anne Grousbeck Ei Iida | w/o |
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