Gaëlle Widmer (born 24 December 1977) is a Swiss former professional tennis player.

Widmer, a left-handed player from Neuchâtel, reached a best ranking on tour of 238 in the world.^[1]

Her career included a Fed Cup appearance for Switzerland in 2005, when she and Stefanie Vögele were beaten by Austria's Klemenschits twins in a World Group Playoff doubles rubber.^[2]

She won a total of five ITF singles titles, before retiring in 2007.

Outcome	No.	Date	Tournament	Surface	Opponent	Score
Winner	1.	1 December 2003	ITF Cairo, Egypt	Clay	Gabriela Velasco Andreu	6–4, 4–6, 6–2
Winner	2.	30 March 2004	ITF Cairo, Egypt	Clay	Marina Shamayko	3–6, 6–4, 7–6(5)
Runner-up	3.	15 August 2004	ITF Koksijde, Belgium	Clay	Michaëlla Krajicek	4–6, 2–6
Runner-up	4.	22 August 2004	ITF Enschede, Netherlands	Clay	Antonela Voina	5–7, 4–6
Runner-up	5.	29 August 2004	ITF Alphen a/d Rijn, Netherlands	Clay	Tessy van de Ven	3–6, 3–6
Winner	6.	26 April 2005	ITF Bournemouth, United Kingdom	Clay	Georgie Gent	6–3, 6–2
Winner	7.	12 March 2006	ITF Sunderland, United Kingdom	Hard	Naomi Cavaday	6–1, 3–6, 6–1
Runner-up	8.	7 March 2007	ITF Jersey, United Kingdom	Hard	Jane O'Donoghue	6–4, 2–6, 4–6
Winner	9.	14 March 2007	ITF Sunderland, United Kingdom	Hard (i)	Anna Fitzpatrick	6–4, 6–1
Runner-up	10.	6 May 2007	ITF Antalya, Turkey	Hard	Angelique Kerber	6–3, 4–6, 1–6

Outcome	No.	Date	Tournament	Surface	Partner	Opponents	Score
Runner-up	1.	19 September 2006	ITF Madrid, Spain	Hard	Céline Cattaneo	Sorana Cîrstea Katie O'Brien	4–6, 4–6
Runner-up	2.	7 March 2007	ITF Jersey, United Kingdom	Hard (i)	Céline Cattaneo	Anna Hawkins Elizabeth Thomas	1–6, 3–6

• List of Switzerland Fed Cup team representatives

• Gaëlle Widmer at the Women's Tennis Association
• Gaëlle Widmer at the International Tennis Federation
• Gaëlle Widmer at the Billie Jean King Cup (archived)