Singles
2012 Chang-Sat Bangkok Open
Champion	Dudi Sela
Runner-up	Yuichi Sugita
Score	6–1, 7–5

Cedrik-Marcel Stebe was the defending champion but chose to participate at the 2012 US Open instead.
Dudi Sela won the final 6–1, 7–5 against Yuichi Sugita.

Seeds

Draw

Finals

	Semifinals							Final
	1	Dudi Sela	6	6
	Q	Christopher Rungkat	3	1
								1	Dudi Sela	6	7
								3	Yuichi Sugita	1	5
	3	Yuichi Sugita	6	6
		Maoxin Gong	1	3

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	D Sela	7	6
	WC	P Siriluethaiwattana	5	2				1	D Sela	6	6
	Q	K Takeuchi	2	1				WC	K Wachiramanowong	0	2
	WC	K Wachiramanowong	6	6											1	D Sela	6	6
		J Millman	6													J Millman	4	4
		D Molchanov	5r						J Millman	6	3	7
	WC	W Sornbutnark	1	0				7	J Ward	3	6	5
	7	J Ward	6	6																		1	D Sela	6	6
	4	Z Zhang	3	6	7																	Q	C Rungkat	3	1
	Q	H Srugo	6	0	5			4	Z Zhang	6	6
	Q	S-y Jeong	6	6				Q	S-y Jeong	4	4
		J Statham	2	4											4	Z Zhang	6	4	4
	Q	C Rungkat	2	6	77										Q	C Rungkat	3	6	6
		T Matsui	6	2	63			Q	C Rungkat	6	6
		I Klec	6	7					I Klec	2	0
	6	T Chen	3	5

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	5	A Weintraub	64	6	6
		Stefan Seifert	77	3	3			5	A Weintraub	4	6	66
	WC	Kong Pop Lertchai	2	4					M Reid	6	4	78
		M Reid	6	6												M Reid	2	2
		L Vanni	6	6											3	Y Sugita	6	6
		D King-Turner	2	3					L Vanni	3	2
		N Gombos	1	3				3	Y Sugita	6	6
	3	Y Sugita	6	6																		3	Y Sugita	6	6
	8	H Heliövaara	3	6	2																		M-X Gong	1	3
		K Krawietz	6	2	6				K Krawietz	1	1
		L Huang	6	4	6				L Huang	6	6
		G Jones	4	6	3											L Huang	4	2
		Y Uchiyama	79	77												M-X Gong	6	6
		V Vardhan	67	62					Y Uchiyama	5	3
		M-X Gong	77	4					M-X Gong	7	6
	2	D Udomchoke	64	1r

References

• Main Draw
• Qualifying Draw