Phrom Buri (Thai: พรหมบุรี, pronounced [pʰrōm bū.rīː]) is a district (amphoe) in the eastern part of Sing Buri province, central Thailand.

The town (mueang) of Phrom Buri dates back to before the reign of King U Thong, the first king of Ayutthaya kingdom. The old city was at Wat Amphawan, Tambon Phrom Buri. Later the center of the city was moved to Pak Bang Muen Han (ปากบางหมื่นหาญ) and to the north side of Wat Phromma Thephawat.

During the Thesaphiban reforms, Phrom Buri was one of the provinces included into Monthon Krungkao (later renamed to Monthon Ayutthaya) in 1895. It was later downgraded to a district in Sing Buri Province.

In 1943 the district office was moved to its present location on the north side of Wat Kudi Thong.

Neighboring districts are (from the east clockwise) Tha Wung of Lopburi province, Chaiyo and Pho Thong of Ang Thong province, Tha Chang and Mueang Sing Buri of Sing Buri Province.

Phrom Buri is divided into seven sub-districts (tambons), which are further subdivided into 42 administrative villages (mubans).

No.	Name	Thai	Villages	Pop.
01.	Phra Ngam	พระงาม	06	3,800
02.	Phrom Buri	พรหมบุรี	06	3,274
03.	Bang Nam Chiao	บางน้ำเชี่ยว	06	3,665
04.	Ban Mo	บ้านหม้อ	08	6,145
05.	Ban Paeng	บ้านแป้ง	06	2,303
06.	Hua Pa	หัวป่า	04	1,479
07.	Rong Chang	โรงช้าง	06	3,328

There are two sub-district municipalities (thesaban tambons) in the district:

• Bang Nam Chiao (Thai: เทศบาลตำบลบางน้ำเชี่ยว) consisting of sub-district Bang Nam Chiao.
• Phrom Buri (Thai: เทศบาลตำบลพรหมบุรี) consisting of sub-district Phrom Buri.

There are four sub-district administrative organizations (SAO) in the district:

• Phra Ngam (Thai: องค์การบริหารส่วนตำบลพระงาม) consisting of sub-district Phra Ngam.
• Ban Mo (Thai: องค์การบริหารส่วนตำบลบ้านหม้อ) consisting of sub-district Ban Mo.
• Ban Paeng (Thai: องค์การบริหารส่วนตำบลบ้านแป้ง) consisting of sub-district Ban Paeng.
• Rong Chang (Thai: องค์การบริหารส่วนตำบลโรงช้าง) consisting of sub-districts Rong Chang and Hua Pa.

• amphoe.com (Thai)