Singles
2025 Challenger Città di Lugano
Final
Champion	Borna Ćorić
Runner-up	Raphaël Collignon
Score	6–3, 6–1
Events
Singles Doubles
← 2024 · Challenger Città di Lugano · 2026 →

Otto Virtanen was the defending champion^[1] but chose not to defend his title.

Borna Ćorić won the title after defeating Raphaël Collignon 6–3, 6–1 in the final.^[2]

	Semifinals							Final
	1	Raphaël Collignon	77	4	6
	Q	Murphy Cassone	63	6	3
								1	Raphaël Collignon	3	1
								2	Borna Ćorić	6	6
	Q	Dino Prižmić	2	4
	2	Borna Ćorić	6	6

	First round							Second round							Quarterfinals							Semifinals
	1	R Collignon	6	7
	Q	V Sachko	4	5				1	R Collignon	6	7
	SE	V Durasovic	6	1	6			SE	V Durasovic	4	5
		B Hassan	4	6	4										1	R Collignon	6	6
		C Chidekh	3	6	4										8	L Draxl	4	4
		E Ruusuvuori	6	3	6				E Ruusuvuori	4	62
	Q	R Sakamoto	4	4				8	L Draxl	6	77
	8	L Draxl	6	6																		1	R Collignon	77	4	6
	3	L Van Assche	2	6	6																	Q	M Cassone	63	6	3
	Alt	T-l Wu	6	2	0			3	L Van Assche	6	6
	SE	Patrick Zahraj	2	77	3				J Choinski	3	1
		J Choinski	6	63	6										3	L Van Assche	62	6	64
	Q	R Berankis	1	2											Q	M Cassone	77	0	77
	Q	M Cassone	6	6				Q	M Cassone	79	78
	LL	J Cui	2	4				5	H Grenier	67	66
	5	H Grenier	6	6

	First round							Second round							Quarterfinals							Semifinals
	7	V Gaubas	6	1	6
	PR	D Stricker	3	6	2			7	V Gaubas	62	7	6
		B Zhukayev	6	610	65				M Röttgering	77	5	4
		M Röttgering	4	712	77										7	V Gaubas	2	3
	Q	D Prižmić	6	6											Q	D Prižmić	6	6
	WC	J Paul	3	2				Q	D Prižmić	6	6
	LL	JC Prado Ángelo	2	3				4	A Blockx	3	2
	4	A Blockx	6	6																		Q	D Prižmić	2	4
	6	H Squire	6	7																		2	B Ćorić	6	6
	Alt	A Andreev	3	5				6	H Squire	77	6
	Q	E Butvilas	6	5	64			WC	R Bertola	65	4
	WC	R Bertola	2	7	77										6	H Squire	2	2
		A Escoffier	6	6											2	B Ćorić	6	6
	WC	M Brunold	2	3					A Escoffier	4	4
		G Onclin	4	2				2	B Ćorić	6	6
	2	B Ćorić	6	6

• Main draw
• Qualifying draw