Singles
2023 IBG Prague Open
Final
Champion	Rudolf Molleker
Runner-up	Gabriel Debru
Score	6–2, 6–2
Events
Singles Doubles
← 2022 · IBG Prague Open · 2024 →

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

Rudolf Molleker won the title after defeating Gabriel Debru 6–2, 6–2 in the final.

	Semifinals							Final
	Q	Gabriel Debru	5	6	6
	5	João Sousa	7	3	4
								Q	Gabriel Debru	2	2
								4	Rudolf Molleker	6	6
	4	Rudolf Molleker	6	77
	8	Valentin Vacherot	4	65

	First round							Second round							Quarterfinals							Semifinals
	1	L Neumayer	6	3	4
	Q	G Debru	2	6	6			Q	G Debru	7	6
	WC	Hynek Bartoň	6	3	2			Q	J Nicod	5	1
	Q	Jakub Nicod	1	6	6										Q	G Debru	77	63	6
		C Hemery	4	6	2										WC	T Kodat	64	77	4
	WC	T Kodat	6	1	6			WC	T Kodat	6	6
		H Laaksonen	4	77	6				H Laaksonen	3	3
	7	M Bourgue	6	63	2																	Q	G Debru	5	6	6
	3	L Darderi	6	67	77																	5	J Sousa	7	3	4
		M Janvier	3	79	65			3	L Darderi	6	6
	Q	M Vrbenský	6	7				Q	M Vrbenský	4	1
		D Jordà Sanchis	3	5											3	L Darderi	5	6	63
	WC	J Forejtek	6	3	6										5	J Sousa	7	3	77
		J Barranco Cosano	4	6	4			WC	J Forejtek	0	6	4
		V Royer	4	1				5	J Sousa	6	4	6
	5	J Sousa	6	6

	First round							Second round							Quarterfinals							Semifinals
	6	H Squire	6	4	3
	Q	FA Gómez	4	6	6			Q	FA Gómez	6	6
		L Giustino	6	6					L Giustino	3	3
		FC Jianu	4	3											Q	FA Gómez	3	3
		M Gengel	2	2											4	R Molleker	6	6
		M Chazal	6	6					M Chazal	2	2
		L Rosol	3	4				4	R Molleker	6	6
	4	R Molleker	6	6																		4	R Molleker	6	77
	8	V Vacherot	6	6																		8	V Vacherot	4	65
	Q	Kirill Kivattsev	4	4				8	V Vacherot	6	6
		F Mena	7	6					F Mena	2	4
	PR	Carlos López Montagud	5	3											8	V Vacherot	77	6
		A Paulson	6	6												A Paulson	65	2
	Q	Paweł Ciaś	4	4					A Paulson	6	6
		Mathys Erhard	77	5	6				M Erhard	3	3
	2	F Maestrelli	60	7	3

• Main draw
• Qualifying draw