Elisabetta Cocciaretto defeated Clara Burel in the final, 7–5, 4–6, 6–4 to win the singles tennis title at the 2023 Swiss Open.^[1] It was her first WTA Tour title. Cocciaretto saved multiple match points during the tournament—one match point against Céline Naef in the first round, and a further match point in the semifinals against Anna Bondár.

Petra Martić was the reigning champion,^[2] but chose not to defend her title.

	Semifinals							Final
	9	Diane Parry	6	62	3
		Clara Burel	4	77	6
									Clara Burel	5	6	4
								2	Elisabetta Cocciaretto	7	4	6
		Anna Bondár	77	66	5
	2	Elisabetta Cocciaretto	63	78	7

	First round							Second round							Quarterfinals							Semifinals
	9	D Parry	7	2	6
	WC	F Ferro	5	6	2			9	D Parry	6	7
	LL	J Dürst	0	2					D Kovinić	4	5
		D Kovinić	6	6											9	D Parry	6	6
		J Teichmann	6	6											7	A Cornet	3	2
		E Andreeva	2	2					J Teichmann	1	6	4
		V Golubic	6	1	3			7	A Cornet	6	1	6
	7	A Cornet	3	6	6																	9	D Parry	6	62	3
	3	A Bogdan	2	6	6																		C Burel	4	77	6
		S Waltert	6	3	3			3	A Bogdan	6	5	6
	Q	V Grammatikopoulou	611	2				Q	D Jakupović	0	7	3
	Q	D Jakupović	713	6											3	A Bogdan	3	0r
		O Danilović	4	4												C Burel	6	1
		C Burel	6	6					C Burel	6	6
		L Jeanjean	0	0				5	E Navarro	3	2
	5	E Navarro	6	6

	First round							Second round							Quarterfinals							Semifinals
	6	M Andreeva	6	6
	Alt	D Yastremska	0	2				6	M Andreeva	63	3
		A Bolsova	1	3					A Bondár	77	6
		A Bondár	6	6												A Bondár	6	6
		S Sorribes Tormo	6	6												T Zidanšek	2	0
	WC	S Bandecchi	2	1					S Sorribes Tormo	3	5
		T Zidanšek	6	6					T Zidanšek	6	7
	4	L Bronzetti	2	4																			A Bondár	77	66	5
	8	E Avanesyan	6	2																		2	E Cocciaretto	63	78	7
	PR	E Rodina	2	0r				8	E Avanesyan	2	7	6
	Q	RL Jani	5	2				Q	C Paquet	6	5	1
	Q	C Paquet	7	6											8	E Avanesyan	5	3
		J Riera	6	6											2	E Cocciaretto	7	6
	PR	PM Țig	2	1					J Riera	1	6	3
	WC	C Naef	6	61	2			2	E Cocciaretto	6	3	6
	2	E Cocciaretto	3	77	6

	Qualifying competition
	Alt	Dalila Jakupović	6	7
	WC	Jenny Dürst	4	5

	Qualifying competition
	2	Réka Luca Jani	6	6
	PR	Amandine Hesse	0	3

	Qualifying competition
	3	Valentini Grammatikopoulou	6	6
	WC	Valentina Ryser	1	3

	Qualifying competition
	4	Chloé Paquet	6	6
		Carol Zhao	2	4

• Main draw
• Qualifying draw